JBL扬声器
JBL Stage 2 定制安装扬声器 安装指南说明书
Stage 2 定制安装扬声器安装指南1.2 | 20221128© 2022 Harman International概述支持的产品相关附件我们提供了若干附件以在新定制安装应用中安装扬声器，针对SGK 8适于 8 英寸吸顶式扬声器的方形网罩套件包装盒内容1 台 Stage 定制安装扬声器1 个零边框网罩1 个安装切口模板1 本快速入门指南（本文）安全警告重要提示！对于因硬件或扬声器安装不当或掉落导致的人身伤害或产品损坏，HARMAN International 概不承担任何责任。
在安装这些产品之前，请通读本文件并注意所有警告。
重要提示！安装注意事项考虑到本产品的性质，在安装前请参考以下注意事项。
1. 请在扬声器和墙腔中的任何绝缘体之间留有足够的间隙，以避免在发生过热时被点燃。
非易燃材料：1 英寸（26 毫米）易燃材料：3 英寸（78 毫米）2. 确保墙壁和天花板内的所有电线规格符合或超过当地的隐蔽布线防火规范。
3. 根据按距离划分的线规下面的表格确定电线长度并选择使用适当规格的扬声器电线。
4. 在将扬声器固定在表面时，切勿将支脚拧得太紧，以免扬声器松动。
如果使用的是电动螺丝刀，请将其转速调至最低。
5. 切勿将扬声器连接到额定功率超过建议功率的功放。
过度驱动扬声器可能导致过热，使扬声器损坏的风险增大。
6. 在安装好所有扬声器并为其接线之前，切勿将电线连接至功放端。
7. 在开始安装过程之前先确定并购买附件，如预制支架。
请参考相关附件以查看可用支架。
8. 确保墙壁和天花板的材料厚度在 ½ 英寸（13 毫米）和 2 英寸（51 毫米）之间，并且能够承载扬声器的重量。
安装在进行安装之前，请确保仔细和全面地阅读这些说明，以确保安装工作完整而准确。
如有疑问，请联系您的经销商或客服部门寻求帮助。
安装前的准备工作虽然这些定制安装扬声器被设计成可在各种环境中使用，但仍有一些准则需要遵循，以确保扬声器充分发挥性能。
专业音响知识JBL扬声器扬声器简称音箱是音响系统的喉舌直接
专业音响知识JBL扬声器扬声器(简称音箱)是音响系统的喉舌,直接影响还音的音质,是音响系统最关健的部份。
它如像歌星的嗓子,有了好的歌喉,才能唱出优美动听的歌曲。
因此,如何选择好声音宏亮、音质优美、失真极微、工作可靠的扬声器是广大用户共同关心和追求的目标。
JBL作为专业扬声器生产商的先驱者,我们有责任向大家介绍。
一)如何选择扬声器?扬声器实际上是一种把可听范围内的音频电功率信号通过换能器(扬声器单元),把它转变为具有足够声压级的可听声音。
为能正确选择好扬声器,必须首先了解声音信号的属性,然后要求扬声器能“原汁原味”地把音频电信号还原成逼真自然的声音。
人声和各种乐声是一种随机信号,其波形十分复杂。
可听声音的频率范围一般可达20HZ-20KHZ;其中语言的频谱范围约在150HZ-4KHZ左右;而各种音乐的频谱范围可达40HZ-18KHZ左右。
其平均频谱的能量分布为:低音和中低音部分最大,中高音部分次之,高音部分最小(约为中、低音部分能量的10/1); 人声的能量主要集中在200HZ-35KHZ频率范围。
这些可听随机信号幅度的峰值比它的平均值均大10-15DB (甚至更高一点)。
因此扬声器要能正确地重放出这些随机信号,保证重放的音质优美动听,扬声器必须具有宽广的频率响应特性,足够的声压级和大的信号动态范围。
我们希望能用相对较小的信号功率输入获得足够大的声压级,即要求扬声器具有高效率的电功率转换成声的灵敏度。
此外我们还要求扬声器系统在输入信号适量过载的情况下,不会受到损坏,即要有较高的可靠性。
还有一点是用户希望能买到“物美价廉”的好产品,即性能价格比高的产品,最后还要考虑产品的配套方式,外形结构和吊装方法等条件。
二)扬声器系统主要技术特性的应用扬声器系统有许多与音色效果和使用场合直接有关的技术特性,为了用好用活这些技术特性,用户必须对它们有所了解。
1) 二路(二分频)和三路(三分频)扬声器系统音频信号的频谱范围很宽,把20HZ-20KHZ的信号要用一种扬声器单元是无法满足整段频响的;因为一般的12寸以上大口径扬声器单元,低音特性很好,失真不大,但超过1.5HZ的信号,它的表现就很差了;1-2寸的高音扬声器单元(高音压缩驱动器)重放3KHZ以上的信号性能很好,但无法重放中音和低音信号。
JBL Jembe 无线电脑扬声器说明书
J BL® JEMBE™ WIRELESS COMPUTER SPEAKERSThe JBL® Jembe™ Wireless computer speakers pack the powerful JBLsound you’ve come to love in a package that will proudly adorn any deskor tabletop — and best of all, you can access your music wirelessly viaintegrated Bluetooth® technology. Deliciously attractive, these compactspeakers feature a built-in power amplifier and a Slipstream port that helpscreate rich bass with low distortion. This powered 2.0 computer speakersystem also has a 1/8-inch (3.5mm) headphone jack built in, so that youcan enjoy a more personal experience with your music. While the small anddiscreet speaker system fits comfortably on any desk, feel free to roamabout and stream music from your favorite Bluetooth-enabled devices viaHARMAN TrueStream™.Powerful JBL Sound• Integrated Bluetooth technology• Built-in power amplifier• Powered 2.0 computer speaker system • Slipstream port technologies Sleek, Compact and Sexy • 1/8" (3.5mm) headphone jack • Stylish JBL Weave design • Compact and portable• Built-in power-saving featureWireless desktop speakers designed to bring the best soundout of your digital media devices — all in a compact, stylish design.Finishes:D on’t let size fool you. These compact computer speakers deliver thesame powerful JBL sound you’ve come to love and expect over the years.K EY FEA TURES JBL ® JEMBE ™WIRELESS Experience movies from your computer as if you were sitting in the theater. The powered 2.0 computer speaker system has added acoustic performance that gives your sound depth and space.Play your music on the fly from any one ofyour favorite Bluetooth -enabled devices viaHARMAN TrueStream — works with youriPhone, iPad, tablet, MP3 player, laptopand virtually any audio player equipped withBluetooth technology.The built-in power amplifier pumps more power and promises superior stability — action films will keep you on the edge of your seat while your music will keep your ears perked and emotions piqued. The JBL Jembe speaker system produces sound as if it came directlyfrom the studio sessions.Integrated BluetoothT echnology The JBL Jembe two-piece speaker system is small and stylish. The JBL Weave design adds fabulous form to exceptional function.JBL Slipstream port technologies providelisteners with powerful, great-sounding bass with low distortion. Plug in your desktopcomputer, laptop or personal music player and hear real bass you can feel.Enjoy a more intimate experience with the integrated 1/8" (3.5mm) headphone jack, designed to work with your personal cans.If no audio signal is present for approximatelythree minutes, the JBL Jembe Wirelessspeakers will go into power-standby mode.When an audio signal is detected, they’ll quickly power up again, automatically.Built-In Power Amplifier Powered 2.0 Speaker System 1/8" (3.5mm) Headphone Jack Stylish JBL Weave Design Built-In Power-Saving FeatureWhat’s included:• 2 Jembe Wireless Computer Speakers• 1 AC Power Adapter• Quick Start GuideSPECS AND INFORMATION Power• 6 watts per satellite @ 1% THDDimensions (W x D x H)• 4-3/16" x 4-3/16" x 5-5/16" (106mm x 106mm x 135mm)Input impedance• >5k ohmsSignal-to-noise ratio• >80dBFrequency response• 80Hz – 20kHzInput sensitivity• 250mV for rated powerPower requirement• 12V DC, 1.5APower consumption• 0.5W (standby); 20W (maximum)Approved• F CC/CEGo online to register your purchase and access professional tips that’ll show you just how serious sound can get./registermyproductSpecs that would impress even the toughest critics.SPECIFICATIONS JBL ® JEMBE ™ WIRELESS © 2012 HARMAN International Industries, Incorporated. All rights reserved.JBL is a trademark of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. HARMAN TrueStream, the “Hear the truth” logo and Jembe are trademarks of HARMAN International Industries, Incorporated. AirPlay, iPad, iPhone and iPod are trademarks of Apple Inc., registered in the U.S. and other countries. “Made for iPod,” “Made for iPhone,” and “Made for iPad” mean that an electronic accessory has been designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod, iPhone, or iPad may affect wireless performance. The Bluetooth word mark and logo are registered trademarks and are owned by Bluetooth SIG, Inc., and any use of such marks by HARMAN International Industries, Incorporated, is under license.Features, specifications and appearance are subject to change without notice.HARMAN International Industries, Incorporated8500 Balboa Boulevard, Northridge, CA 91329 USA 。
JBL Professional Control 25AV 音频扬声器说明书
I SERIESPoint Source 600IP6-1152/94MEDIUM POWER 15-INCH TWO-WAY 90° x 40° INSTALLATION LOUDSPEAKERCommunity strives to improve its products on a continual basis. Specifications are therefore subject to change without notice.*Rated continuous maximum input voltage at passive loudspeaker input may be higher than for directly connected transducers due to losses in the passive crossover. Voltages applied to the transducer terminals through the passive crossover shall always be the same or lower than the rated continuous voltagefor each device.FEATURES• Long excursion ferrite LF driver with FEA-optimized motor and symmetric movement suspension • 3-inch voice coil, 1.4” exit HF driver; hybrid titanium/polyimide diaphragm on low compression phase plug • Lightweight and compact with deep LF extension• Large rotatable waveguide with individually voiced crossover, single amp / biamp selectable • Innovative low profile modular bracket systems create elegant arrays with simplified installationAPPLICATIONSMAIN PA (Small to Medium Size Venues)Houses of Worship · Auditoriums · Restaurants Meeting Rooms · Theaters · Corporate A/V Systems DISTRIBUTED OR FILL (Larger Size Venues)Arenas · Stadiums · Night Clubs · TheatersThemed Entertainment · Larger Houses of WorshipDESCRIPTIONI SERIES Point Source 600 loudspeakers provide excellent acoustic performance, modular flexibility and elegant aesthetics for modern performance venues. Designed to support the goals of systems integrators and consultants both acoustically and mechanically, I SERIES includes a wide variety of arrayable, rotatable coverage patterns and a comprehensive selection of modular bracket systems that accelerate system design and system commissioning.FEA-optimized ferrite motors, mechanically mirrored suspension and advanced cooling system combine to provide linear performance with minimal power compression. The custom long-excursion LF driver delivers deep bass response and a detailed midrange at maximum SPL levels. The HF driver delivers excellent sound quality from a hybrid diaphragm of deep drawn titanium and resonance-absorbing polyimide, coupled to a patented low compression, low resonance phase plug for very low distortion performance with abundant headroom.The rotatable 13-inch (330mm) HF waveguide provides well-defined coverage and a smooth off-axis response that enhances arrayability. Individually voiced crossovers produce proper beamwidth matching transitions and identical sonic signatures, permitting horn patterns to be mixed throughout an installation. Additionally, user selectable single-amp or biamp operating modes expand application flexibility.I SERIESPoint Source 600IP6-1152/94MEDIUM POWER 15-INCH TWO-WAY90° x 40° INSTALLATION LOUDSPEAKERI SERIES Point Source 600IP6-1152/94MEDIUM POWER 15-INCH TWO-WAY 90° x 40° INSTALLATION LOUDSPEAKERHORIZONTAL POLAR DATA (30dB Scale, 6dB per major division)VERTICAL POLAR DATA (30dB Scale, 6dB per major division)-6— 100 Hz — 125 Hz — 160 Hz — 200 Hz-90° right 45°135°90° left-45°-135°0°front180°back — 250 Hz — 315 Hz — 400 Hz — 500 Hz— 630 Hz — 800 Hz — 1000 Hz — 1250 Hz-90° right 45°135°90° left-45°-135°0°front 180°back-90° right 45°135°90° left-45°-135°0°front180°back — 10000 Hz — 12500 Hz — 16000 Hz-90° right45°135°90° left-45°-135°0°front180°back — 4000 Hz — 5000 Hz — 6300 Hz — 8000 Hz-90° right45°135°90° left-45°-135°0°front 180°back — 1600 Hz — 2000 Hz — 2500 Hz — 3150 Hz-90° right45°135°90° left-45°-135°0°front 180°back -6— 100 Hz — 125 Hz — 160 Hz — 200 Hz-90° down 45°135°90° up-45°-135°0°front180°back — 250 Hz — 315 Hz — 400 Hz — 500 Hz— 630 Hz — 800 Hz — 1000 Hz — 1250 Hz-90° down 45°135°90° up-45°-135°0°front 180°back-90° down 45°135°90° up-45°-135°0°front180°back — 10000 Hz — 12500 Hz — 16000 Hz-90° down45°135°90° up-45°-135°0°front180°back — 4000 Hz — 5000 Hz — 6300 Hz — 8000 Hz-90° down45°135°90° up-45°-135°0°front 180°back — 1600 Hz — 2000 Hz — 2500 Hz — 3150 Hz-90° down45°135°90° up-45°-135°0°front 180°backI SERIES Point Source 600IP6-1152/94MEDIUM POWER 15-INCH TWO-WAY90° x 40° INSTALLATION LOUDSPEAKERCommunity Professional Loudspeakers333 East Fifth Street, Chester, PA 19013-4511 USA Phone (610) 876-3400 • Fax (610) •*********************CAUTION: Installation of loudspeaker s should only be performed by trained and qualified personnel. It is strongly r ecommended that a licensed and cer tified pr ofessional structural engineer approve the mounting design.IP6-1152/94 [07JUN2016]I SERIESPoint Source 600IP6-1152/94MEDIUM POWER 15-INCH TWO-WAY 90° x 40° INSTALLATION LOUDSPEAKERNOTESTwo-way single ampTwo-way biampTwo-way input panel1. PERFORMANCE SPECIFICATIONS All measurements are taken indoor using a time-windowed and processed signal to eliminate room effects, approximating ananechoic environment, a distance of 6.0 m. All acoustic specifications are rounded to the nearest whole number. An external DSP with settings provided by Community Professional Loudspeakers is required to achieve the specified performance; further performance gains can be realized using Community’s dSPEC226 loudspeaker processor with FIR power response optimization.2. OPERATING RANGE The frequency range in which the on-axis processed response remains within 10dB of the average SPL.3. CONTINUOUS POWER HANDLING Maximum continuous input voltage (and the equivalent power rating, in watts, at the stated nominal impedance) that the system can withstand, without damage, for a period of 2 hours using an EIA-426-B defined spectrum; with recommended signal processing and protection filters. 4. NOMINAL SENSITIVITY Averaged SPL over the operating range with an input voltage that would produce 1 Watt at the nominal impedance and the averaged SPL over the operating range with a fixed input voltage of 2.83V, respectively; swept sine wave axial measurements with no external processing applied in whole space, except where indicated.5. NOMINAL MAXIMUM SPL Calculated based on nominal / peak power handling, respectively, and nominal sensitivity; exclusive of power compression.6. EQUALIZED SENSITIVITY The respective SPL levels produced when an EIA-426-B signal is applied to the equalized loudspeaker system at a level which produces a total power of 1 Watt , in sum, to the loudspeaker subsections and also at a level which produces a total voltage, in sum, of 2.83V to the loudspeaker subsections, respectively; each referenced to a distance of 1 meter.7. EQUALIZED MAXIMUM SPL The SPL produced when an EIA-426-B signal is applied to the equalized loudspeaker system, at a level which drives at least one subsection to its rated continuous input voltage limit, referenced to a distance of 1 meter. The peak SPL represents the 2:1 (6dB) crest factor of the EIA-426-B test signal.8. AXIAL PROCESSED RESPONSE The on-axis variation in acoustic output level with frequency of the complete loudspeaker system with recommended signal processing applied. 1/6 octave Gaussian smoothing applied.9. AXIAL SENSITIVITY The on-axis variation in acoustic output level with frequency for a 1 Watt swept sine wave, referenced to 1 meter with no signal processing. 1/6 octave Gaussian smoothing applied.10. HORIZONTAL / VERTICAL OFF-AXIS RESPONSES The loudspeaker’s magnitude response at various angles off-axis, with recommended signal processing applied in the operating mode which utilizes the largest number of individually amplified pass bands. 1/6 octave Gaussian smoothing applied.11. DIRECTIVITY INDEX The ratio of the on-axis SPLsquared to the mean squared SPL at the same distance for all points within the measurement sphere for each given frequency; expressed in dB. 1/6 octave Gaussian smoothing applied.12. BEAMWIDTH The angle between the -6dB points in the polar response of the loudspeaker when driven in the operating mode which utilizes the largest number of individually amplified pass bands. 1/6 octave Gaussian smoothing applied.Data presented on this spec sheet represents a selection of the basic performance specifications for the model. These specifications are intended to allow the user to perform a fair, straightforward evaluation and comparison with other loudspeaker spec sheets. For a detailed analysis of this loudspeaker’s performance, please download the GLL file and/or the CLF file from our website: .。
L100经典版JBL 标志性三分频书架式扬声器说明书
L100经典版标志性三分频书架式扬声器用户手册2感谢您购买 JBL® L100 经典版三分频扬声器逾 70 年来，JBL 一直为全球各地的音乐厅、录音棚和电影院提供音频设备，已成为领先的唱片艺术家和录音师的信赖之选。
传奇般的 JBL 4310 录音室专业监听音箱帮助 20 世纪六七十年代成功制作了许多热门专辑。
4310 是1970 年推出的 L100 家庭扬声器的灵感来源，成为 JBL 一直最畅销的扬声器。
L100 经典版是原先 L100 的当代再现。
全新的 L100 经典版向该历史经典致敬，采用了标志性的 12 英寸 (300mm) 三分频配置，还配备了全新驱动器、分频网络、机箱，使设计达到 21 世纪最高性能标准。
L100 经典版采用了紧凑的监听器类型占地空间设计，具有先进的 JBL 换能器，包括 JW300PW-8 纯纸浆锥盆低音扬声器、105H-1 聚合物包膜纯纸浆锥盆中音扬声器和 JT025TI1-4 钛高音扬声器。
L100 经典版保留了初始 L100 受七八十年代听众欢迎的所有性能属性，例如特殊的动态范围和对比度、清晰而轻松的高输出以及精确的高冲击低音。
更新的 L100 经典版添加了针对全带宽的更高细节分辨率、更低的失真度、更逼真的立体声声场成像，尤其是离轴。
L100 经典版必定在各地音乐爱好者中缔造新的传奇。
包装内容一个 L100 经典版扬声器 •一个 Quadrex 泡沫网罩 •一个 L100 经典版用户手册•摆放和定位警示：L100 经典版各重 58.8 lb. (26.7 kg)。
在将扬声器放在架子或平台上之前，请先确保架子或平台稳固，足以支撑扬声器的重量。
在决定扬声器的摆放位置之前，请测量您的房间并参考下图考虑摆放位置。
•切勿将扬声器放在功放、电热器等能够产生大量热量的设备附近。
切勿将扬声器放在潮湿或多尘位置。
• 切勿将扬声器放在阳光直射或有其他强光源的位置。
JBL音箱介绍
全新的差分驱动单元MRX500系列是JBL的全新力作，它的（全新），是因其采用了JBL全新开发一系列差分驱动双音圈单元。
由于这种单元采用比传统磁钢轻数倍的钕磁钢，MRX500系列成为众多同类产品中最轻的扬声器，重量轻、功率大也就成为其设计上的两大亮点：前者，可以提高安装时的工作效率，后者，加大了扬声器的最大声压值（SPL），让你的投资更物有所值。
先进波导号筒：现代扬声器技术对扬声器的指向性要求已到非常高的程度。
如果没有真正能控制高频覆盖范围的号角，再大的声压级也浪费在扩散中。
JBL MRX 515JBL MRX515 扬声器类型：15"，2路，全频扬声器频率范围(-10dB)：52Hz-20kHz频率响应(±3dB)：65Hz-20kHz覆盖角(H×V)：70°×70°体积(高×宽×深)：700×435×470mm净重：19.5kg低频驱动器：1×JBL 265H 380mm (15")差分驱动器高频驱动器：1×JBL 2408H 37.5 mm (1.5")钕磁驱动器灵敏度(1w/1m)：98dB阻抗：8Ω最大声压级：124dB连续(130dB峰值)负载功率：400W(连续)/800W(节目)/1600W(峰值)JBL MRX515 是一款功率为400 W的15 英寸2 路无源扬声器，该产品采用了最新设计的驱动器，它将12 英寸和15 英寸的400 W差动传感器与最新的1.5 英寸环状聚合体振膜压缩驱动器完美的结合了起来，在大大降低传感器装置的重量的同时，为您送出了高品质声音。
该产品还采用了升级的箱体设计，使用了最新的材料和DuraFlex 抛光，大大降低了整个扬声器的重量，并且增加了其便携性。
JBL MRX 518SJBL MRX518S 扬声器类型：18"，超低音扬声器频率范围(-10dB)：40Hz-200Hz频率响应(±3dB)：45Hz-200Hz体积(高×宽×深)：560×535×700mm净重：32.5kg低频驱动器：1×JBL 2044H 457mm (18")差分驱动器灵敏度(1w/1m)：100dB阻抗：4Ω最大声压级：127dB连续(133dB峰值)负载功率：500W(连续)/1000W(节目)/2000W(峰值)JBL MRX 512MJBL MRX512M 扬声器类型：12"，2路，舞台返送/监听箱频率范围(-10dB)：60Hz-20kHz频率响应(±3dB)：90Hz-20kHz覆盖角(H×V)：70°×70°体积(高×宽×深)：645×380×345mm净重：14.9kg低频驱动器：1×JBL 262H 305mm (12")差分驱动器高频驱动器：1×JBL 2408H 37.5 mm (1.5")钕磁驱动器灵敏度(1w/1m)：97dB阻抗：8Ω最大声压级：123dB连续(129dB峰值)负载功率：400W(连续)/800W(节目)/1600W峰值Community（C牌）S系列音箱先进的内部结构S-系列箱体全部是由坚固的交叉式11层白桦木层压板组成，内层还配置了钢制网罩，外部喷涂了耐用的聚酯涂料。
JBL音响参数
JBL音箱技术参数 Ls系列
JBL LS80
• 音箱类型三分频落地式扬声器 • 输出功率 200W • 低音单元 2×200英寸 • 高音单元 50英寸 • 阻抗 6Ω • 灵敏度 90dB • 产品尺寸1117×259×418 • 产品重量 35.6kg/只
JBL LS40
• 音箱类型 三分频书架式扬声器 • 输出功率 150W • 低音单元 50英寸 • 高音单元 19英寸 • 阻抗 6Ω • 灵敏度 87dB • 分频频率 2.6KHz，7kHz • 频率响应 42Hz-40kHz • 产品尺寸 493×222×343mm
JBL简介
JBL是全球最大的专业扬声器生产商，从原材料开发、喇叭单元的设 计和生产、音箱的设计和生产一功都能全盘控制在自己的手中。JBL 音箱的服务范围非常广泛，在专业领域上包括了电影院、大型音响工 程、大型流动演出、录音室监听、乐队用的音响 ，以至娱乐场所如迪 士科、歌舞厅、卡拉OK、酒吧……民用方面，从最高级的发烧音响， 以至目前最流行的家庭影院组合……到处都可以看到JBL的身影。
• 产品重量 13.5kg/只
JBL LS CENTER
• 推荐功率:150W, • 灵敏度:88dB • 阻抗:6欧姆频率范围 (-10dB):50Hz–40kHz, • 分频点：
2.5kHz,9kHz,24dB/octave • 频率响应(–3dB):85Hz-
JBL AC2212 00 两路扬声器说明说明书
AC2212/00 Compact 2-Way Loudspeakerwith 1 x 12” LFKey Features:u100° x 100° Coverage.u P T™ Progressive Transition™Waveguide for good pattern controlwith low distortion.u B i-Amp/Passive Switchable.u O ptional U-Bracket for easy installation.u O ptional planar array frame kit(see AE Series Array Guide).Applications:u L ecture hallsu H ouses of worshipu C orporate learning centersu S mall performing arts facilitiesu T heatrical sound designu A uditoriumsu S ports facilitiesu T hemed entertainment venuesAC2212/00 is a compact 2-way full-range loudspeaker system comprised of one 300 mm (12 in) low frequency drive r and one 38 mm (1.5 in) exit/ 44 mm (1.75 in) voice-coil compression driver. The PT Progressive Transition waveguide provides wide 100° by 100° coverage. High-slope passive crossovers minimize band overlap.The cabinet is fitted with M10 threaded suspension points. Optional U-bracket, as well as pre-engineered array bracketryis available for easy installation. Four threaded inserts located on back ofthe enclosure allow attachment of an Omnimount™ or simila r mounting bracket.AC2212/00 is part of JBL’s AE Application Engineered Series, a versatil e family of loudspeakers for a wide variety of fixed installation application s.Specifications:System:Frequency Range1 (-10 dB): 50 Hz – 19 kHzFrequency Response1 (±3 dB): 55 Hz – 17 kHzCoverage Pattern: 100° x 100°Directivity Factor (Q): 7.1Directivity Index (DI): 8.5 dBCrossover Modes: Bi-amp/Passive switchablePassive Crossover Slopes2: 4th order (24 dB/oct) Transitional HP & LP, 1.3 kHzTransducer Power Rating (AES)3: L F: 300 W (1200 W peak), 2 hrs250 W (1000 W peak), 100 hrsHF: 50 W (200 W peak), 2 hrsLong-Term System Power Rating (IEC)4: Passive mode: 250 W (1000 W peak), 100 hrsMaximum SPL5: B i-amp mode:LF: 120 dB-SPL cont avg (126 dB peak)HF: 126 dB-SPL cont avg (132 dB peak)Passive mode:120 dB-SPL cont avg (126 dB peak)System Sensitivity6 (1W @ 1m): Passive mode: 95 dB SPLTransducers:Low Frequency Driver: 1 x JBL M112-8 300 mm (12 in) driver with 63 mm (2.5 in) voice coilNominal Impedance: 8 ohmsSensitivity6 (1W @ 1m, within operational band): 95 dB SPLHigh Frequency Driver: J BL 2418H-1/MTA, 38 mm (1.5 in) exit compression driver, 44 mm(1.75 in) voice coilNominal Impedance: 8 ohmsSensitivity (1W @ 1m): 109 dB SPLWaveguide: PT-F1010HFPhysical:Enclosure: T rapezoidal with 15 degree side angles, 16 mm (5/8 in) exterior grade11-ply Finnish birch plywoodSuspension Attachment: 15 points (4 top, 4 bottom, 2 each side, 3 rear), M10 threaded hardware.4 x M8 on rear for MultiMount® MM-022-BT,MM-024-BT, or MM-020-CMFinish: Black DuraFlex™ finish. White available upon request.Grille: P owder coated 14 gauge perforated steel, with acoustically transparentblack foam backing.Input Connector: N L4 Neutrik Speakon® and CE-compliant covered barrier stripterminals. Barrier terminals accept up to 5.2 sq mm (10 AWG) wire ormax width 9 mm (.375 in) spade lugs. Speakon in parallel with barrierstrip for loop-through.Environmental Specifications: Mil-Std 810; IP-x3 per IEC529.Dimensions (H x W x D): 548 x 355 x 352 mm(21.6 x 14.0 x 13.9 in)Net Weight: 19.1 kg (42 lb)Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washersU-Bracket MTU-4Optional planar array frame kit. See AE Series Bracket GuideBi-amp mode, with recommended active tuning.Resultant engineered acoustical response of crossover network and components.AES standard, one decade pink noise with 6 dB crest factor within device’s operational band, free air. Standard AES 2 hr rating pluslong-term 100 hr rating are specified for low-frequency transducers.IEC standard, full bandwidth pink noise with 6 dB crest factor, 100 hours.Calculated based on power rating and sensitivity, exclusive of power compression.Anechoic sensitivity in free field, no additional sensitivity gain from boundary loading.JBL continually engages in research related to product improvement. Changes introduced into existing products without notice arean expression of that philosophy.u AC2212/00 Compact 2-Way Loudspeaker with 1 x 12” LFHorizontal 1/3 Octave PolarsSS AC2212/00CRP 10M 8/16u AC2212/00 Compact 2-Way Loudspeaker with 1 x 12” LFVertical 1/3 Octave PolarsJBL Professional 8500 Balboa Boulevard, P.O. Box 2200Northridge, California 91329 U.S.A.© Copyright 2016 JBL ProfessionalA Harman International Company。
JBL Soundfly BT插入式无线扬声器快速设置指南说明书
Quick Setup GuideJBL SoundfL y ™BtPlug-in wireless speakerWelcomeThank you for purchasing the JBL Soundfly™ BT plug-in wireless speaker. Soundfly BT will fill your room with sound from your portable Bluetooth -enabled device while plugging directly into an AC outlet and remaining practically invisible.Included ItemsJBL Soundfly BTUnitAC Plug Adapter (varies with region)Support Pad (varies with region)2Plug soundfly Bt Into an ac outletONturnIng soundfly Bt on and offONSTANDBYNote: Soundfly BT will automatically enter the Standby mode after 10 minutes of inactivity.PaIr soundfl y Bt WIth your BluetoothdevIceNOTE: Bluetooth pairing between two devices does not have to be repeated after a successful initial pairing unless you remove Soundfly BT from the paired device’s Bluetooth device list. To un-pair Soundfly BT from the current device, press and hold the Bluetooth logo button.stream your audIo on soundfl y BtSoundfly BT will automatically turn from Standby to On when it receivesa streaming audio signal from a Bluetooth-capable device. Use your Bluetooth-enabled device to control the volume and other playback functions. The maximum streaming range is approximately 33 feet(10m) from the Soundfly BT unit.JBl easy connect aPPlIcatIonThe JBL Easy Connect application is downloadable free from theAndroid® Market at . The JBL Easy Connect Application features:• C ontrols for Soundfly BT’s digital sound processing (DSP) thatenables you to get the best sound wherever you plug in Soundfly BT.• A music player with a music browser function.• O ne touch Bluetooth operation.uPgradIng fIrmWareYour Soundfly BT has upgradeable firmware that lets you takeadvantage of new features and improvements as they becomeavailable. Go to for information about checking your unit’s firmware version and instructions on upgrading to a newer firmware version.3trouBleshootIngSymptom poSSible problem Solution noteNo sound (Power button LED is not illuminated)Faulty AC connection Make sure that Soundfly BT isplugged into a working AC outlet.The Power button LED glowswhite or amber when the unit isreceiving AC power.No sound (Power button LED glows amber.)Soundfly BT is in Standby mode.Touch the Power button.The Power button LED glowswhite when the unit is on.The Bluetooth-enabled device is outof range of Soundfly BTMove the device closer to SoundflyBT.Soundfly BT’s operational range isapproximately 33 feet (10m).No sound (Power button LED glows white.)Soundfly BT is not paired with aBluetooth-enabled device.Pair Soundfly BT with a Bluetooth-enabled device. See Pair SoundflyBT with Your Bluetooth Device, onpage 3.The Pairing LED illuminates solidblue when Soundfly BT is pairedwith a Bluetooth-enabled device.Sound crackles, hisses or is distorted The Bluetooth-enabled device isoverloading Soundfly BT.• T urn down the volume on theBluetooth-enabled device.• S et the EQ on the device to “Off”.Loud hum or buzzing There is a ground loop with the ACwiring.• U nplug Soundfly BT and plug it into a different AC outlet.The Bluetooth-enabled device does not pair with Soundfly BT Soundfly BT is not in pairing mode.Touch the Pairing button on SoundflyBT.The Pairing LED flashes blue whenSoundfly BT is in the pairing mode. Bluetooth-enabled device’s batteryis low.Recharge the device’s batteryfollowing the instructions in its usermanual.The device is not compatible withSoundfly BT.Verify compatibility with the device’smanufacturer.4sPecIfIcatIonsAmplifier power: 10 watts x 2Frequency response: 60Hz – 20kHzSignal-to-noise ratio: 80dBPower requirement: 100V – 240V AC, 50Hz/60HzPower consumption: <0.5W (standby); 30W (maximum)Dimensions (W x H x D): 7-1/2" x 2-13/16" x 3-5/8"(71mm x 92mm x 190mm)Weight:0.9 lb (0.42kg)56fcc and Ic regulatIons (usa and canada onl y)FCC and iC inFormation For uSerSThis device complies with Part 15 of the FCC rules and Industry Canada license-exempt RSS 210. Operation is subject to the following two conditions: (1) This device may not cause harmful interference; and (2) this device must accept any interference received, including interference that may cause undesired operation.radio and televiSion interFerenCe]This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Thisequipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and then on, the user is encouraged to try to correct the interference by one or more of the following measures:• I ncrease the separation between the equipment and the receiver.• C onnect the equipment to a different outlet so that the equipment and receiver are on different branch circuits.• C onsult the dealer or an experienced radio/ TV technician for help.note: Changes or modifications not expressly approved by HARMAN could void the user’s authority to operate the equipment.Ic statement and WarnIng (canada onl y)This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.ImPortant safety InstructIonsHereby, HARMAN International Industries, Incorporated declares that this JBLSOUNDFLY BT is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC, ErP 2009/125/EC Directive and RoHS 2011/65/EU Directive. The declaration of conformity may be consulted at the support section of our Web site, accessible from .7© 2012 HARMAN International Industries, Incorporated. All rights reserved.JBL is a trademark of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. Soundfly is a trademark of HARMAN International Industries, Incorporated.Android is a trademark of Google Inc. Use of this trademark is subject to Google Permissions.The Bluetooth word mark and logo are registered trademarks and are owned by the Bluetooth SIG, Inc., and any use of such marks by HARMAN International Industries, Incorporated, is under license.Features, specifications and appearance are subject to change without notice.Part No. JBLP3271 Rev.: AHARMAN International Industries, Incorporated8500 Balboa Boulevard, Northridge, CA 91329 USA。
JBL L82 Classic MkII 8寸两孔书架扬声器快速入门指南说明书
L82 Classic MkII2-Way 8-in ch (200mm) Bookshelf LoudspeakerQuick Start GuideOverviewFor more information on the set-up and operation of thisproduct refer to the product page on the /specialty-audio/ website. Should further assistance be required feel free to contact customer support at the numbers below.Inside the US and Canada:+1 888.691.4171Outside the US and Canada:+44 1707 668 012Box Contents2x L82 Classic MkII Edition Loudspeakers 2x Quadrex Foam Grilles1x Quick Start Guide (This Document)Placement and Positioning●Before deciding where to place your speakers, survey your room and think about placement, using the illustration as a guide.●Avoid placing the speakers near power amplifiers, heat registers or other objects that generate large amounts of heat.●Avoid placing speakers in humid or dusty locations.●Avoid placing speakers in direct sunlight or other intense light.●Refer to the illustration for distances from walls, between the speakers, and angle to the listening position.●The speakers should be raised so that the tweeter is approximately at ear level.The JS-80 speaker stand (sold separately) can be used to achieve the proper listening height.●Angle the speakers towards the listening position closer to the listeners ears for a stronger center image and away from the listening position further from the listeners ears for a more spacious image.SpecificationsRecommended Stand:JBL JS-80 (Sold Separately)Wiring and ConnectionsIMPORTANT! Wiring Precautions●Ensure that the positive (+) and negative (-) bare wire or spades DO NOT touch each other when connected to the binding posts as this will short out the amplifier channel.●Ensure that the appropriate polarity is maintained from amplifier to speaker to ensure proper phase for both speakers.4 Post Terminals / Dual Sets of Binding Posts Terminal Wiring Options2-Wire ConnectionsBasic single-wire connection from amplifierWe recommend using HF Positive and LF Negative.B-Wire ConnectionsTwo-wire connection from single amplifier Remove terminal straps before connecting.Bi-Amp ConnectionsTwo-wire connection from multiple amplifiers Remove terminal straps before connecting.+-Positive + Red Negative - Black+-+-Positive + Red Negative - BlackControls and AdjustmentsThis speaker features a HF level control that can be used to adjust the HF level independently from the level of the woofer. The default setting of 0dB represents a flat balance between the woofer and tweeter, however in some cases there may be a need to adjust the level of the tweeter.High Frequencies (HF Level) Adjustments●For rooms where the high frequencies sound bright, lower the relative HF level by turning the knob counterclockwise.●For rooms where the high frequencies sound dull, raise the relative HF level by turning the knob clockwise.Harman International Industries, Incorporated.8500 Balboa Blvd, Northridge CA 91329 United States.European Representative: Harman International Industries, Incorporated.EMEA Liaison Office, Danzigerkade 16G, 1013 AP Amsterdam, The Netherlands.UK Business Address: Ground Floor, Westside 2, London Road, Apsley, Hemel Hempstead, Hertfordshire, HP3 9TD, United Kingdom. © 2023 Harman International Industries, Incorporated. All Rights Reserved.JBL is a trademark of Harman International Industries, Incorporated registered in the United States and other countries.Features, Specifications, and Appearance subject to change without notice.。
JBL Control Series 控制系列 Control Monitor 扬声器说明书
JBL®CONTROL®SERIESCONTROL®MONITOR LOUDSPEAKERS OWNER’S GUIDEJBL ®CONTROL ®SERIESFor more than 60 years, JBL ®audio equipment has been chosen for top concert halls, recording studios and movie theaters around the world, becoming the hands-down choice of leading recording artists and sound engineers.With JBL Control ®Monitor loudspeakers, innovative technologies such as an all-new,extended-response soft-dome tweeter, a second-generation Elliptical Oblate Spheroidal ™(EOS) waveguide and PolyPlas ™transducer reinforcement are available to you. Enjoy!UNPACKING THE SPEAKERSIf you suspect damage from transit, report it immediately to your dealer. Keep the shipping carton and packing materials for future use.Included:2x Control Monitor loudspeakers 1x Owner’s manual 1x USA warranty sheet2x Wall brackets2x Sets of four rubber feet1x 4mm Allen wrench for wall-bracket installationPLACEMENTSTEREOBefore deciding where to place your speakers, survey your room and think about placement, keeping the following points in mind and using Figure 1 as a guide:•For best results, place the speakers 6'–8' (1.5m–2.5m) apart.•Position each speaker so that the tweeter is approximately at ear level.•Generally, bass output will increase as the speaker is moved closer to a wall or corner.the best bass level and stereo imaging in your room.HOME THEATERFor front-channel use, place one speaker on the left and another on the right,along either side of the television monitor. Since the speakers are magnetically shielded, you can place them near a CRT TV without worrying about the magnetic field distorting the TV picture.For surround-channel use, place speakers on bookshelves or stands alongside the listening position. Control Monitor loudspeakers are also wall-mountable.Final placement depends on room acoustics, availability of space and your listening preference (Figures 2 and 3).In 6- or 7-channel configurations, place the rear channel(s) behind the listening position, as shown in Figures 2 and 3.NOTE:A JBL powered subwoofer will add impact and realism to both music and film soundtracks. Contact your JBL dealer for recommendations on subwoofer models for your particular application.rear channels are for a 7-channel system. The center rear channel is for a 6-channel system.for some rooms. Left/right rear channels are for a 7-channel system. The center rear channel is for a 6-channel system.INSTALLING FEETThe supplied self-adhesive rubber feet may be attached to the bottom corners of your speakers to protect your furniture.WALL-MOUNTINGNOTE: The customer is responsible for proper selection and use of mounting hardware (available through hardware stores), to properly and safely wall-mount the module....Step 4.Connect the speaker wire to the speaker, as described in “Wiring the System.”.the threaded Step 6.Hand-tighten securely. You may angle the speaker up to 15 degrees to the right or the left before final tightening.WIRING THE SYSTEMIMPORTANT: MAKE SURE ALL EQUIPMENT ISTURNED OFF BEFORE MAKING ANY CONNECTIONS.For speaker connections, use a high-quality speaker wire with polarity coding.The side of the wire with a ridge or other coding is usually considered positive polarity (i.e., +).NOTE:If desired, consult your local JBL dealer about speaker wire and connection options.The speakers have coded terminals that accept a variety of wire connectors. The most common connection is shown in Figure 8.To ensure proper polarity, connect each +terminal on the back of the amplifier or receiver to the respec-tive +(red) terminal on each speaker,as shown in Figure 9. Connect the –(black) terminals in a similar way.See the owner’s guides that wereincluded with your amplifier, receiver and television to confirm connection procedures.IMPORTANT: DO NOT REVERSE POLARITIES(I.E., + TO –OR –TO +) WHEN MAKING CONNECTIONS.DOING SO WILL CAUSE POOR IMAGING AND DIMINISHED BASS RESPONSE.STANDARD CONNECTIONFigure 9.Wiring diagram shows polarity connections for one channel of a stereo or home theater system.FINAL ADJUSTMENTSCheck the speakers for playback, first by setting the system volume control to a minimum level, and then by applying power to your audio system. Play a favorite music or video segment and increase the system volume control to a comfortable level.NOTE:You should hear balanced audio reproduction across the entire frequency spectrum. If not, check all wiring connections or consult the authorized JBL dealer from whom you purchased the system for more help.The amount of bass you hear and the stereo-image quality will be affected by a number of different factors, including the room’s size and shape, the construction materials used to build the room, the listener’s position relative to the speakers, and the position of the speakers in the room.Listen to a variety of music selections and note the bass level. If there is too much bass, move the speakers away from nearby walls. Conversely, if you place the speakers closer to the walls, there will be more bass output.CARE OF YOUR SPEAKER SYSTEMEach enclosure has a finish that does not require any routine maintenance.When needed, use a soft cloth to remove any fingerprints or dust from the enclosure or grille.NOTE:Do not use any cleaning products or polishes on the cabinet or grille.Figure 8.This figure shows how to connect bare wires to the terminals.JBL and Control are trademarks of Harman International Industries, Incorporated, registered in the United States and/or other countries. Elliptical Oblate Spheroidal and PolyPlas are trademarks of Harman International Industries, Incorporated.Features, specifications and appearance are subject to change without notice.Harman Consumer Group, Inc.250 Crossways Park Drive, Woodbury, NY 11797 USA ©2008 Harman International Industries, Incorporated. All rights reserved. Part No.406-000-05970-ESPECIFICATIONSCONTROL MONITOR LOUDSPEAKERSFrequency Response (–3dB)50Hz – 40kHz Recommended Amplifier Power Range*10W – 125W Power Handling (Peak)240W Sensitivity (2.83V/1m)87dB Nominal Impedance 8 OhmsCrossover Frequency 2400Hz – 18dB/octave, low-pass;2400Hz – 24dB/octave, high-pass Low-Frequency Transducer 5" (130mm) PolyPlas,™shielded High-Frequency Transducer 1" (25mm) Soft-dome,shielded; EOS waveguide Dimensions With Grille 10" x 6-5/8" x 8"(H x W x D)(259mm x 164mm x 202mm)Weight per Speaker6.6 lb (3kg)*The recommended amplifier power range rating will ensure proper system headroomto allow for occasional peaks. We do not recommend sustained operation at these maximum power levels.Laurent Rault。
JBL音响参数
JBL是全球最大的专业扬声器生产商，从原材料开发、喇叭单元的设 计和生产、音箱的设计和生产一功都能全盘控制在自己的手中。JBL 音箱的服务范围非常广泛，在专业领域上包括了电影院、大型音响工 程、大型流动演出、录音室监听、乐队用的音响 ，以至娱乐场所如迪 士科、歌舞厅、卡拉OK、酒吧……民用方面，从最高级的发烧音响， 以至目前最流行的家庭影院组合……到处都可以看到JBL的身影。
1982年，JBL发表了“扬声器皇帝”4344，这是个比较巨大的临场监 听系统，声音松弛而雍容，频带极宽，听过4344，耳朵是要“中毒”的， 再也无法肯定其他扬声器系统了。到目前为止，上海拥有的4344有过5对， 2对在上海电台，但92年的时候烧掉了其中的一对，1对在私人手里，转手 过，1对在中唱上海公司，1对现在还在美罗城卖，售价10万元人民币。
JBL LC2
型 号： LC2中置 音箱产品说明： 四分频双6寸落地 式扬声器 功率处理： 75W/300W （连续 值/峰值功率） 阻 抗： 8 欧姆 灵 敏 度： 92dB 频率响应： 50Hz-40kHz 分 频 点： 700Hz、4kHz、 20kHz 超高音单元： 3/4" (19mm) 高音单元： 1" (25mm) 中音单元： 4" (100mm) 低音单元： 6" (150mm)x2 尺 寸： 311mmx559mmx127mm 重 量： 13.2kg/只 产 地： 墨 西 哥
重量 14.4kg
• 外观尺寸217×672×235mm
Hale Waihona Puke JBL LS120P• 音箱类型 12寸有源低 音炮
• 输出功率 400W • 低音单元 300英寸 • 频率响应 25Hz-
150Hz • 产品尺寸
jbltunebeam说明书
jbltunebeam说明书摘要：1.产品简介2.主要功能3.操作说明4.技术规格5.注意事项6.售后服务正文：【产品简介】JBL TuneBeam 是一款便携式扬声器，提供高品质音频体验。
产品设计紧凑，易于携带，适合户外活动、旅行和家庭聚会等场合。
【主要功能】- 无线蓝牙连接：可与智能手机、平板电脑和其他支持蓝牙的设备连接，实现无线音频传输。
- JBL 标志性音质：采用JBL 专利音响技术，提供清晰、均衡的音质表现。
- 便携设计：体积小巧，重量轻，方便携带。
配备挂绳，易于携带和存放。
- 一键控制：操作简便，一键实现播放、暂停、接听和挂断等功能。
- 内置麦克风：可进行免提通话，方便用户进行语音通话。
【操作说明】1.开启扬声器：长按电源键，绿灯亮起，表示扬声器已开启。
2.蓝牙连接：打开手机或其他设备的蓝牙设置，搜索并选择“JBL TuneBeam”，即可完成连接。
3.播放音乐：连接成功后，播放设备上的音乐，扬声器将自动播放音乐。
4.暂停/播放：短按播放键，可实现音乐的暂停和播放。
5.接听/挂断电话：通话过程中，短按播放键可实现接听和挂断电话。
【技术规格】- 扬声器类型：单声道- 额定功率：3W- 频率响应：20Hz - 20kHz- 蓝牙版本：4.2- 有效距离：10 米- 电池容量：1200mAh- 充电时间：约2 小时- 续航时间：约10 小时【注意事项】1.请勿将扬声器暴露在雨中或潮湿环境中，以免导致故障。
2.请勿将扬声器放置在高温或阳光直射的环境中，以免损坏产品。
3.请勿让儿童单独操作扬声器，以免造成意外伤害。
4.使用过程中，请勿堵塞扬声器格栅，以免影响音质和散热。
【售后服务】JBL TuneBeam 享受一年的质保服务。
在质保期内，如有任何产品质量问题，请凭购买凭证和产品到指定售后服务点进行维修或更换。
JBL SSW-2 高性能双12英寸扬声器说明书
MANUAL DEL PROPIETARIOJBL ® SSW-2Subwoofer pasivo dual de 12” de alto rendimiento2GRACIAS POR ELEGIR JBL®Durante más de 70 años, JBL se ha implicado en todos los aspectos de la grabación y reproducción de música y películas, desde conciertos en directo hasta las grabaciones que puedes escuchar en casa, el coche o el despacho.Confiamos en que el sistema JBL que has elegido proporcione todas las notas de diversión que esperas y que cuando pienses en comprar otros equipos de audio para el hogar, automóvil o despacho vuelvas a elegir, una vez más, los productos JBL.Dedica unos instantes a registrar tu producto en el sitio web en . Esto nos permitirá mantenerte informado de nuestros avances más recientes y conocer a nuestros clientes y ofrecerles productos a la medida de sus necesidades y expectativas.Todas las funciones y especificaciones del producto están sujetos a cambios sin previo aviso.INCLUIDO1. Subwoofer2. Rejilla3. Manual del propietarioCOLOCACIÓNAl utilizar subwoofers en un espacio delimitado como una sala normal de cine en casa, las reflexiones, las ondas estacionarias y los absorbentes resonantes que haya en la sala generan picos y valles en la respuesta de bajos que varían de forma importante en función de la ubicación de los oyentes en la sala. Un oyente sentado en un lugar puede escuchar un exceso de bajos generados por un pico de respuesta en esa ubicación, mientras otro oyente a un metro de distancia puede escuchar mucho menos a causa de la presencia de un valle en su lugar.Las ubicaciones de los subwoofers dentro de la sala (junto con las dimensiones de esta) también tienen un efecto importante en la generación de estos picos y valles en la respuesta de bajos. La colocación cuidadosa de los subwoofers no puede, por sí sola, compensar todos los picos y valles de la respuesta en una sala, pero sí puede eliminar o reducir de forma importante los valles más importantes.Es importante reducir los valles en la respuesta por toda la sala en la medida de lo posible colocando los subwoofers correctamente, ya que no es posible utilizar la ecualización para compensar estas variaciones importantes en la respuesta. Por ejemplo, utilizar la ecualización para tratar de compensar un valle de 13 dB en la respuesta exige al amplificador aportar 20 veces la potencia a la frecuencia en cuestión. Esto puede suponer que se supere rápidamente la capacidad del amplificador, lo cual da lugar a cortes que degradan apreciablemente la calidad del sonido.Casi en cualquier sala, colocar los subwoofers en las esquinas produce los valles menos pronunciados y los picos más elevados en la respuesta de bajos.Recomendamos encarecidamente instalar más de un subwoofer independientemente del tamaño de la sala. Con un solo subwoofer se obtiene la distribución menos homogénea de bajos en la sala. Al utilizar más de un subwoofer, es posible cancelar algunos de los modos de la sala en distintas ubicaciones de escucha, lo cual proporciona una calidad de sonido más homogénea a bajas frecuencia en3 toda el área de escucha. A menudo no es posible ubicar un solo subwoofer sin que queden grandes valles en la respuesta, que no se pueden corregir mediante la ecualización. Casi siempre, utilizar dos o más subwoofers bien colocados sirve para eliminar estos valles en la respuesta.Puesto que la construcción de las paredes casi nunca es perfectamente idéntica en las paredes opuestas, en la práctica, las soluciones basadas en fórmulas como la colocación de los subwoofers en los puntos de 1/4 raramente funcionan. La mejor solución es realizar mediciones de alta resolución en el área principal de escucha mientras se experimenta con la colocación de los altavoces.Colocar un subwoofer en la posición de escucha y medirlo desde las posibles posiciones de instalación disponibles en la sala, utilizando la reciprocidad acústica, puede ayudar a encontrar más rápidamente las mejores posiciones. Este tipo de mediciones desde las mejores posiciones posibles genera los resultados con el número y el valor mínimo de picos y valles en la respuesta.COLOCACIÓN DE UN SOLO SUBWOOFERCOLOCACIÓN DE DOS SUBWOOFERSLa colocación de dos subwoofers se determina en función de la organización de los asientos de escucha de la sala.Salas con una sola fila de asientos Salas con más de una fila de asientosCOLOCACIÓN DE CUATRO SUBWOOFERSCONEXIONESLos altavoces y la electrónica tienen terminales (+) y (–) correspondientes. La mayoría de fabricantes de altavoces y electrónica, incluidoJBL, utilizan el color rojo para el terminal (+) y el color negro para el terminal (–). Es importante conectar ambos terminales de formaidéntica: el conector (+) del altavoz con el (+) del amplificador y el conector (–) del altavoz con el (–) del amplificador. Si se conectan loscables “fuera de fase”, se obtiene un sonido pobre, con bajos débiles y una mala reproducción espacial en estéreo. Con la llegada de lossistemas de sonido envolventes multicanal, la conexión de todos los altavoces del sistema con la polaridad correcta sigue siendo igual deimportante para conservar el ambiente y la direccionalidad correctos del material del programa.Si se utilizan dos subwoofers SSW-2, los cables de ambos deben tener la misma longitud. Si la respuesta de bajos parece reducida, esposible que haya un problema de fase y que las ondas sonoras de ambos subwoofers se estén cancelando entre sí. Si la respuesta de bajosparece baja, prueba a invertir la polaridad de uno de los subwoofers, es decir, conectar el terminal (+) del amplificador al terminal (–) delaltavoz y el terminal (–) del amplificador al terminal (+) del altavoz.Para utilizar los terminales de altavoz con poste atornillado de la copa de terminales situada en la parte trasera del subwoofer SSW-2,desatornilla la perilla de color hasta que puedas ver, debajo de la perilla, el orificio que atraviesa el poste por el centro. Inserta el extremodel cable pelado por este orificio y, a continuación, vuelve a apretar la perilla hasta que la conexión esté bien sujeta. Si utilizas conectoresde pala, puedes deslizarlos alrededor del poste antes de apretar la perilla. El orificio del centro de cada perilla sirve para utilizar conectoresde tipo banana. Asegúrate de respetar la polaridad correcta. El cable del terminal negativo (–) del amplificador se debe conectar alterminal negativo (–) o negro de la copa de terminales y el terminal positivo (+) del amplificador se debe conectar al terminal positivo (+)o rojo de la copa de terminales.Puesto que el SSW-2 es un altavoz pasivo, solo dispone de conexiones de nivel de altavoz. El subwoofer SSW-2 está diseñadoespecíficamente para usarlo con amplificadores JBL® Synthesis SDA. Se ha optimizado para ofrecer la mejor dinámica yrespuesta en frecuencias utilizando el amplificador JBL SDA-4600, que se ha diseñado específicamente para impulsar laimpedancia de carga reactiva emblemática del SSW-2. El SSW-2 es capaz de funcionar con dos canales de SDA-4600 en modopuenteado.Conecta el receptor principal o la salida de subwoofer de nivel de línea del procesador a la entrada de nivel de línea del amplificadordel subwoofer.Si utilizas dos o más subwoofers, utiliza el número correcto de canales de amplificador (pueden ser amplificadores monobloqueoo multicanal), cada uno de ellos conectado a la salida adecuada del procesador o el receptor. A continuación, conecta losterminales positivo y negativo de cada canal del amplificador a un solo sistema de subwoofer SSW-2.45Longitud del cable Tamaño recomendadoHasta 9 m.Calibre 14 (grosor mínimo)Más de 9 m.Calibre 12 (grosor mínimo)SOLUCIÓN DE PROBLEMASSíntoma SoluciónSi no sale ningún sonido de ningún altavoz • Comprueba que el receptor/amplificador esté encendido y se esté reproduciendo alguna fuente.• Comprueba todos los cables y las conexiones entre el receptor/ amplificador y los altavoces. Comprueba que todos los cables estén conectados. Asegúrate de que no haya ningún cable de altavoz deshilachado, cortado, perforado o en contacto con otro cable.Si la salida de bajos es reducida (o inexistente)• Comprueba que las conexiones con las entradas de altavoz tengan la polaridad correcta (+ y –). Si vas a utilizar dos subwoofers SSW-2, prueba a invertir la polaridad en un subwoofer tal como se describe en la página 6.• Piensa en la posibilidad de añadir un amplificador de potencia aparte para alimentar el subwoofer SSW-2.• Si utilizas un amplificador de potencia con el subwoofer SSW-2, comprueba que la salida de subwoofer del receptor/procesador esté activada. Consulta el manual del propietario del receptor/procesador para obtener más información sobre la configuración correcta del altavoz.Si el sistema reproduce sonido a bajo volumen pero se apaga al aumentarlo • Comprueba todos los cables y las conexiones entre el receptor/ amplificador y los altavoces. Comprueba que todos los cables estén conectados. Asegúrate de que no haya ningún cable de altavoz deshilachado, cortado, perforado o en contacto con otro cable.• Si utilizas más de un par de altavoces principales, consulta los requisitos de impedancia mínima del receptor/amplificador.Si vas a escuchar frecuencias medidas (como voces) a través del subwoofer • Al utilizar el modo Normal, ajusta la frecuencia de corte de la electrónica en un valor de frecuencia menor.ESPECIFICACIONESRespuesta en frecuencias20 Hz – 400 Hz (-6 dB)Potencia máxima recomendada del amplificador1200 W RMS por canalImpedancia8 Ohm nominalSensibilidad93 dB (1 W a 1 m) a 60 HzWoofer Woofers duales con cono de aluminio anodizado negro de 12"/300 mmDimensiones (Alto x Ancho x Profundidad):838,2 mm x 482,6 mm x 389,16 mmPeso por altavoz64 kg6Please visit / for additional language support on the user manual.Veuillez visiter / pour obtenir le mode d'emploi en d'autres langues.Para obter o manual do usuário em outros idiomas, acesse / Ga naar / voor de handleiding in andere talen.Gå til / for bruksanvisning på flere språk.Если вам требуется дополнительные версии руководства пользователя на других языках, посетите сайт / .別の言語に対応したユーザーマニュアルを読むには、JBL にアクセスしてください。
JBL Arena 系列扬声器说明书
For more than 68 years, JBL® engineers have been involved in every aspect of music and film recording and reproduction, from live performances to the recordings you play on-the-go and in your home, car or office.We’re confident that the JBL system you have chosen will provide every note of enjoyment you expect – and that when you think about purchasing additional audio equipment, you will once again choose JBL products. INCLUDED ITEMSEach box contains one or two loudspeakers, depending on the model, as indicated below.THANK YOU FOR CHOOSING THIS JBL® PRODUCTArena 180 (1) Arena 180 speakerArena 170(1) Arena 170 speakerArena 130(2) Arena 130 speakersArena 120(2) Arena 120 speakersArena 125C(1) Arena 125C speakerCarpet Spikes(Arena 180/170)Rubber FeetArena 125C = 4Arena 130/120 = 812E N G L I S HARENA 180/170/130/120 LEFT AND RIGHT CHANNELSFor best results, place the speakers 6 – 10 feet (1.8m – 3m) apart. Angling the speakers toward the listening position can improve the stereo imaging. The speakers will produce the most accurate stereo soundstage when the angle between the listener and the speakers is between 40 and 60 degrees.Use the included carpet spikes for stability if you are placing your Arena 180/170 speakers on a thick rug or plush carpeting. The carpet spikes can be manually screwed into each rubber foot on the base of the speaker.CAUTION: Floorstanding (tower) loudspeakers have a high center of gravity and may become unstableand tip over during earthquakes or if they are rocked, tipped or improperly positioned. Consider anchoring these speakers to the wall behind them, using the procedures and hardware customary for anchoring bookcases and wall units. You are responsible for proper installation and proper selection of hardware.Generally, bass output will increase as the speaker is moved closer to a wall or corner.For best performance, we recommend that you place the speakers at least 20 inches (51cm) away from the side walls.PLACEMENT• Position Arena 130/120 shelf speakers so that their tweetersare approximately at ear level. Peel off the adhesive backing and apply 4 rubber feet to the corners on the bottom of each speaker.Rubber Feet6 – 10 ft (1.8m – 3m)40° – 60°>20 in (>51cm)WALL-MOUNTING THE ARENA 120We have designed the Arena 120 speakers to mount directly onto a wall. Each speaker has two keyholes on the back and will require two 1-1/2” (38mm), #10 wood screws fastened to a wall stud. If a wall stud is unavailable, install an anchor appropriate for a 1-1/2”, #10 screw.NOTE: You are responsible for the correct selection and use of mounting hardware (available through hardware stores) that will ensure the proper and safe wall-mounting of the speakers.KeyholesRubber cushions1) Using the included wall template, mark the positions on the wall where you would like to place the mounting screws.2) Fasten two 1-1/2” (38mm), #10 wood screws to the wall using the markings from Step 1 as your guide. Leave an 1/16” (1.59mm) space between the wall and screwhead. If a wall stud is not available, use an appropriate anchor.3) To protect wall, attach 4 rubber cushions (included) in suggested locations.4) Place the speaker on the wall by aligning the keyholes on the back of the speaker to the screwheads on the wall.Once positioned properly, the speaker should slide down slightly and become secure.3 ARENA 125CYou should place the center speaker directly above or below the center of your TV screen. The speaker’s tweeter should be no more than 2 feet (61cm) above or below the tweeters of the front left and front right speakers.Peel off the adhesive backing and apply 4 rubber feet to the corners on the bottom of the center channel speaker.•Arena 125C Center SpeakerFront Left Speaker Arena 180/170/130/120Arena 180/170/130/120Front Right Speaker0 – 2ft (0 – 61cm)TVRubber FeetE N G L I S HARENA 130/120 SURROUND CHANNELS 5.1 CHANNEL SYSTEMWhen you use these speakers as surround-channel speakers in a 7.1-channel system, place the surround side speakers directlyto the sides of the listening position, at least 5 – 6 feet (1.5m – 1.8m) above the floor. Place the surround back speakers on the wall behind the listening position, also at least 5 – 6 feet (1.5m – 1.8m) above the floor and 3 – 6 feet (0.9m – 1.8m) apart.ARENA 130/120 SURROUND CHANNELS 7.1 CHANNEL SYSTEM 4When you use these speakers as surround-channel speakers in a 5.1-channel system, place them slightly behind the listening position, facing each other. Ideally, they should be 5 – 6 feet (1.5m – 1.8m) above the floor. An alternate location would be on a wall behind the listening position, facing forward. The surround speakers should not call attention to themselves while they’re playing. Experiment with their placement until you hear a diffuse, ambient sound accompanying the sounds that you hear from the front left, front right and center speakers.If you are using the Arena 130 bookshelf as a wall-mounted surround solution, be sure not to block the rear port opening.3 – 6 ft apart (0.9m – 1.8m)Arena 130/120Surround Left Side Speaker Arena 130/120Surround Right Side SpeakerArena 130/120Surround Left BackSpeakerArena 130/120Surround Right Back SpeakerArena 180/170/130/120 Front LeftSpeakerArena 180/170/130/120 Front Right SpeakerArena 125C Center SpeakerArena 130/120Surround Left Side SpeakerArena 130/120Surround Right Side SpeakerTVSurround Right SpeakerSurround LeftSpeaker5 –6 ft (1.5m – 1.8m)Arena 180/170/130/120 Front Left Speaker Arena 180/170/130/120 Front Right SpeakerArena 125C Center SpeakerTV • Do not place objects on top of the speaker.• Wipe the cabinet with a clean, dry cloth to remove dust. Damp cloths may dull the cabinet finish. Do not use volatileliquids or solvents such as benzene, paint thinner or alcohol on the cabinet.• Do not spray chemicals near the cabinet.• To remove dust from the grille fabric, use a vacuum cleaner set to “low” suction.• Do not wash the grilles in water, as it may fade the color or make them uneven.• If the woofer cones become dusty, you can carefully sweep them clean with a soft, drycalligraphy brush or paint brush. Do not use a damp cloth.• NEVER touch the tweeter dome or put anything against it.CARING FOR YOUR SPEAKERS5CAUTION: Make sure that all of the system’s electrical components are turned OFF (and preferably unplugged Speakers and amplifiers have corresponding positive and negative (“+” and “–”) connection terminals. All Arena seriesspeakers have connection terminals that are marked “+” and “–” on the terminal-cup assembly. Additionally, the “+” terminals have red markings, while the “–” terminals have black markings.To ensure proper polarity, connect each “+” terminal on the back of the amplifier or receiver to the respective “+” (red) terminal on each speaker. Connect the “–” terminals in a similar way. Do not reverse polarities (i.e., “+” to “–” or “–” to “+”) when making connections. Doing so will cause poor stereo imaging and diminished bass performance.Touching wires can cause a short circuit that can damage your receiver or amplifier.Connect the amplifier to each speaker as shown in the illustration below.CONNECTIONSReceiver or Amplifier (One Channel Shown)Speaker Connector Panel© 2014 Harman International Industries, Incorporated. All rights reserved. Features, specifications and appearance are subject to change without notice.TR00052_AHarman International, Inc.8500 Balboa Boulevard, Northridge, CA 91329 USA from their AC outlets) before making any connections.IMPORTANT : Make sure the (+) and (–) wires or connectors do not touch each other or the other terminal. BASIC SINGLE-WIRE CONNECTION。
JBL LINK PORTABLE智能移动扬声器说明书
Enjoy smarter sound all-around.Link Portable delivers bold, immersive 360-degree sound for up to eight hours. Fully wireless. Take it into the garden, bathroom or kitchen. Waterproof and strong. Our sharply designed speaker can handle an accidental soak and withstand a few bumps and bruises. Keep the music flowing without interruptions or delays by streaming over your WiFi network. Use your voice to ask for your favorite songs and enjoy music streaming with the Google Assistant. Access popular music services via AirPlay 2 and Chromecast. Charging is a breeze thanks to a convenient, easy-to-use cradle. You can also match your décor with a choice of six stylish colors.FeaturesJ BL 360-Degree Pro SoundA irPlay 2 and Chromecast built-inP lay and control your musicwith your voice8 hours of playtimeI PX7 waterproofC harging cradleS imple setup with the Google Home App S ubstance and styleHARMAN International Industries, Incorporated 8500 Balboa Boulevard, Northridge, CA 91329 USA © 2019 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. Features, specifications and appearance are subject to change without notice. Google, Chromecast, Chromecast Built-in and related marks and logos are trademarks of Google LLC. The Google Assistant is not available in certain languages and countries. Requires Internet connection. Requires Chromecast or Chromecast built-in device. Availability of services varies by country and language. Subscriptions for services may be required. The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by HARMAN International Industries, Incorporated is under license. The Wi-Fi CERTIFIED™ Logo is a certification mark of the Wi-Fi Alliance®.Features and BenefitsJBL 360-Degree Pro SoundSurround yourself with music. JBL Link Portable pulses sound in every direction thanks to a full-range transducer with 360-degree capabilities. Tuned by an advanced algorithm, the digital amp delivers full-bandwidth audio. Enjoy crystal clear trebles, sharp mids and wall-to-wall bass throughout your home. AirPlay 2 and Chromecast built-inStream all your favorite music stations, audiobooks and podcasts with AirPlay 2 and Chromecast.Play and control your music with your voiceControl your soundscape. Use your voice to ask for your favorite songs and enjoy music streaming with the Google Assistant.8 hours of playtimeLink Portable gives you up to eight hours of playtime. Catch the latest podcast or audiobook. Listen to every song on your favorite album. You’ll still have plenty of power to spare.IPX7 waterproofIPX7 waterproof protects JBL Link Portable from all sorts of household accidents and mishaps. Charging cradleRecharging your speaker is a breeze. Simply plug the charging cradle into any outlet and place your JBL Link Portable on top. You’ll be ready to get back to the music in no time.Simple setup with the Google Home AppWith the free Google Home App for iOS and Android you can easily set up and manage the JBL Link Portable. Substance and styleA sturdy speaker, JBL Link Portable also has style to go with its substance. Choose from six different vibrant colors to match your décor.What’s in the Box1 x Link Portable1 x Type-C USB cable1 x Charging cradle1 x Safety sheet1 x Quick start guideWarranty cards Technical SpecificationsT ransducer: 1 x 49mmO utput power: 1 x 20WF requency response: 65Hz–20kHzS ignal-to-noise ratio: >80dBB attery type: Lithium-ion Polymer(3.6V, 4800mAh)B attery charge time: 3.5 hours @5V,2A M usic play time: up to 8 hours (varies by volume level and content)W ireless network: 802.11a/b/g/n/ac(2.4/5GHz)B luetooth version: 4.2B luetooth transmitter frequency range: 2402 − 2480MHzB luetooth transmitter power: <12.5dBm B luetooth transmitter modulation: GFSK, π/4 DQPSK, 8DPSK5G Wi-Fi transmitter frequency range: 5.150~5.350GHz, 5.470~5.725GHz, 5.725~5.825GHz5G Wi-Fi transmitter power:<23dBm (EIRP)5G Wi-Fi modulation: OFDM, BPSK, QPSK, 16QAM, 64QAM, 256QAM5G Wi-Fi network compatibility:IEEE 802.11 a/n/ac2.4G Wi-Fi transmitter frequency range: 2412 – 2472MHz (2.4GHz ISM Band, USA 11 Channels, Europe and others 13 Channels)2.4G Wi-Fi transmitter power:<20dBm (EIRP)2.4G Wi-Fi modulation: OFDM, DSSS, DBPSK, DQPSK, CCK, 16QAM, 64QAM 2.4G Wi-Fi network compatibility: IEEE 802.11b/g/nS upported audio formats: HE-AAC,LC-AAC, MP3, Vorbis, WAV (LPCM), FLAC, OpusD imensions (Dia x H): 88 x 170mmW eight: 735g。
JBL Stage 车载扬声器系列说明书
Presentamos el nuevo subwoof er JBL Stage: ¡bajos increíbles a precio increíble!Los subwoofers para automóvil JBL Stage, líderes en precio, se han diseñado para ofrecer una salida elevada, con baja distorsión y capacidad de gestión de bajos hasta una potencia pico de 1000 W. (Disponibles en tres tamaños: 8" (200 mm), 10" (250 mm) y 12" (300 mm), para vehículos de todos los tamaños, desde compactos a limusinas). Estos subwoofers cuentan con conos de woofer de polipropileno, rígidos y muy ligeros, con envolventes de goma de alta calidad para proporcionar alta eficiencia y una durabilidad extraordinaria a fin de complementar del mejor modo posible distintos tipos de amplificadores. Finalmente, algunos de los mejores ingenieros de transductores del mundo dan voz a nuestros subwoofers y altavoces con el fin de garantizar que logramos el sonido emblemático e inconfundible de JBL.CaracterísticasT res tamaños para todas las aplicaciones, entornos y presupuestosM ateriales de la máxima calidad para una fiabilidad extraordinariaP ruebas de fiabilidad estándar de HARMAN A justados competitivamenteJ BL a un precio asequibleHARMAN International Industries, Incorporated 8500 Balboa Boulevard, Northridge, CA 91329 USA © 2017 HARMAN International Industries, Incorporated. Todos los derechos reservados. JBL es una marca comercial de HARMAN International Industries, Incorporated, registrada en los Estados unidos u otros países. Las funciones, las especificaciones y el diseño del producto están sujetos a cambios sin previo aviso.Características y ventajasTres tamaños para todas las aplicaciones, entornos y presupuestosWoofer Stage 810 de 8" (200 mm) con gestión de potencia de 200 W RMS y 800 W pico. Woofer Stage 1010 de 10" (250 mm) con gestión de potencia de 225 W RMS y 900 W pico. Woofer Stage 1210 de 12" (300 mm) con gestión de potencia de 250 W RMS y 1000 W pico. Materiales de la máxima calidad para una fiabilidad extraordinariaLos conos de polipropileno y las envolventes de goma, hechos con materiales de calidad para automoción, proporcionan una reproducción nítida y gran durabilidad, tanto si se trata de acompañar un paseo con música como si es hora de darlo todo. ¡Todo es cuestión de bajos! Pruebas de fiabilidad estándar de HARMANLos altavoces JBL se someten a un proceso riguroso de pruebas que destruirían un altavoz corriente. JBL los congela, los pone en el horno, los agita, los irradia con luz ultravioleta y los hace funcionar a máxima potencia durante días seguidos.Ajustados competitivamenteLos altavoces se ajustan minuciosamente para garantizar valores elevados de SPL y distorsión reducida. Esto significa que, al ajustarlos para obtener el sonido de JBL, se tienen en cuenta las especificaciones habituales y las características individuales de cada altavoz.JBL a un precio asequibleEsto es JBL: el altavoz y el sonido que han fascinado a los entusiastas del sonido durante más de 70 años. No hay nada mejor que conducir con el sonido de JBL.Contenido de la caja:1 x Subwoofer1 x Arandela de espumaManual del propietario2x Adhesivos en dos colores con la marcaEspecificaciones técnicas: Stage 1210C apacidad de potencia: 250 Wrms, 1000 W picoS ensibilidad (a 2,83 V): 91 dBR espuesta en frecuencias: 34 Hz – 200 Hz D iámetro de la bobina de voz: 2" (50.8 mm) I mpedancia: 4 OhmStage 1010C apacidad de potencia: 225 Wrms, 900 W picoS ensibilidad (a 2,83 V): 89 dBR espuesta en frecuencias: 35 Hz – 200 HzD iámetro de la bobina de voz:1.5" (38.8 mm)I mpedancia: 4 OhmStage 810C apacidad de potencia: 200 Wrms, 800 W picoS ensibilidad (a 2,83 V): 88 dBR espuesta en frecuencias: 38 Hz – 200 Hz。
JBL CS46 230V 电影音频扬声器用户指南说明书
READ FIRST! Important Safety Precautions!1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6. Clean only with a dry cloth.7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.9. Do not defeat the safety purpose of the polarized or grounding-type plug.A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus.11. Only use attachments/accessories specified by the manufacturer.12. Use only with the cart, stand,tripod, bracket or table specifiedby the manufacturer or sold withthe apparatus. When a cart isused, use caution when movingthe cart/apparatus combination to avoid injury from tip-over.13. Unplug this apparatus during lightningstorms or when unused for long periods oftime.14. Refer all servicing to qualified servicepersonnel. Servicing is required when theapparatus has been damaged in any way,such as power-supply cord or plug isdamaged, liquid has been spilled or objectshave fallen into the apparatus, theapparatus has been exposed to rain ormoisture, does not operate normally, or hasbeen dropped.15. Do not use attachments notrecommended by the product manufacturer,as they may cause hazards.16. This product should be operated onlyfrom the type of power source indicated onthe marking label. If you are not sure of thetype of power supply to your home, consultyour product dealer or local powercompany. For products intended to operatefrom battery power or other sources, referto the operating instructions.17. If an outside antenna or cable system isconnected to the product, be sure theantenna or cable system is grounded so asto provide some protection against voltagesurges and built-up static charges. Article810 of the National Electrical Code, ANSI/NFPA 70, provides information with regardto proper grounding of the mast andsupporting structure, grounding of the lead-in wire to an antenna discharge unit, size ofgrounding conductors, location of antenna-discharge unit, connection to groundingelectrodes, and requirements for thegrounding electrode. See Figure A.18. An outside antenna system should notbe located in the vicinity of overhead powerlines or other electric light or power circuits,or where it can fall into such power lines orcircuits. When installing an outside antennasystem, extreme care should be taken tokeep from touching such power lines orcircuits, as contact with them might be fatal.19. Do not overload wall outlets, extensioncords, or integral convenience receptacles,as this can result in a risk of fire or electricshock.20. Never push objects of any kind into thisproduct through openings, as they maytouch dangerous voltage points or short-outparts, which could result in a fire or electricshock. Never spill liquid of any kind on theproduct.21. The apparatus shall not be exposed todripping or splashing, and no objects filledwith liquids, such as vases, shall be placedon the apparatus.22. Do not attempt to service this productyourself, as opening or removing coversmay expose you to dangerous voltage orother hazards. Refer all servicing toqualified service personnel.23. When replacement parts are required,be sure the service technician has usedreplacement parts specified by themanufacturer or that have the samecharacteristics as the original part.Unauthorized substitutions may result infire, electric shock or other hazards.24. Upon completion of any service orrepairs to this product, ask the servicetechnician to perform safety checks todetermine that the product is in properoperating condition.25. The product should be mounted to a wallor ceiling only as recommended by themanufacturer.Figure A.Example of Antenna Grounding as perNational ElectricalCode ANSI/NFPA 7023E n g l i s hBefore deciding where to best place your speakers, survey your room and study Figure 1.Figure 1. In this overhead view of a typical installation, satellite speakers are used to reproduce sound for the front channels. The powered subwoofer provides bass for effects and music.THANK YOU FOR CHOOSING JBL(1) Subwoofer(2)Wall brackets for satellites(2) Adjustable wall brackets for satellites with tightening bar(2) Satellite speakersPLANNING YOUR SYSTEMFor more than 60 years, JBL has been involved in every aspect of music and film recording and reproduction, from live performances to the recordings you play in your home, car or office.We’re confident that the JBL system you have chosen will provide every note of enjoyment that you expected – and that when you think about purchasing additional audio equipment for your home, car or office, you will once again choose JBL.Please take a moment to register your product on our Web site at . It enables us to keep you posted on our latestadvance-ments, and helps us to better understand our customers and build products that meet their needs and expectations.INCLUDEDCarefully unpack the system. If you suspect damage from transit,report it immediately to your dealer and/or delivery service. Keep the shipping carton and packing materials for future use. Open the package and verify the following contents:CouchLeft Front ChannelSubwooferRight Front ChannelPLACEMENTLeft and Right Front ChannelsFor left and right front channels, place one satellite to the leftand another to the right of the television, as shown in Figure 1. Since the speakers are magnetically shielded, you can placethem very close to the TV without worrying about the magnetic field distorting the picture.SubwooferSince the installation of a subwoofer can be somewhat more complicated than installing full-range speakers, it is essential that you read this section very carefully prior to connecting the subwoofer to your system.The performance of the subwoofer is directly related to its placement in the listening room and how the subwoofer is aligned with the satellite speakers. Setting the volume of the subwoofer in relation to the left and right speakers is also of critical importance because it’s essential that the subwoofer integrate smoothly with the entire system. Setting the subwoofer’s volume level too high will result in an overpowering, boomy bass. Setting the volume level too low will negate the benefits of the subwoofer.Here are several additional facts on installation that may prove useful. It is generally believed that low frequencies (below 125Hz) are nondirectional and, therefore, placement of a subwoofer within any listening room is not critical. While in theory it is true that the larger wavelengths of extremely low frequencies are basically nondirectional, the fact is that, when installing a subwoofer within the limited confines of a room, reflections, standing waves and absorptions generated within the room will strongly influence the performance of any subwoofer system. As a result, specific location of the subwoofer becomes important, and we strongly recommend that you experiment with placement before choosing a final location. Placement will depend upon your room (for example, whether or not your room permits placement of the subwoofer near either satellite) and the amount and quality of bass required.45E n g l i s hThe CS46 satellites are designed to be mounted on the wall. There is a fixed-mount wall bracket and an adjustable wall bracket provided for each satellite.Each speaker bracket will require up to four 1-1/2"#10 wood screws; each screw should be fastened to a wall stud. If a wall stud is unavailable, install an anchor appropriate for a 1-1/2" #10screw.NOTE:The customer is responsible for the correct selection and use of mounting hardware (available through hardware stores) that will ensure the proper and safe wall-mounting of the speakers.Fixed-Mount Wall BracketStep 1.Mark the positions on the wall where you would like to place the mounting screws.Step 2.Attach the bracket to the wall using two screws (not included).Step 3.Remove the rubber ring on the bottom of the satellite and sit the satellite speaker onto the back bracket.Step 4.Attach 1/4-20" screw into insert on bottom of speaker and tighten.Adjustable Wall BracketStep 1.Remove cap over threaded insert on rear of speaker.Step 2.Mark the positions on the wall where you would like to place the mounting screws.Step 3.Place bracket against the wall and fasten four 1-1/2" #10wood screws through the bracket’s screw holes into the wall. If a wall stud is not available, use an appropriate anchor.Step 4.Unscrew round collar (C) from bracket (A)..Step 5.Screw the ball and shaft assembly (B) to the 1/4"-20 insert on the back of the satellite (do not use the bottom insert). Back out 1/2of a turn and tighten the nut against the speaker. If the ball and shaft assembly is not backed out before tightening the nut, performing Step 8 below may dislodge the threaded insert in the speaker housing and permanently damage the speaker.Step 6.Attach speaker wire as shown on page 6.Step 7.Drop round collar (C) over ball and shaft assembly (B) that is mounted to the speaker with the finished side of the collar facing the rear of the speaker.Step 8.Carefully push the ball straight into the socket mounted on the wall, angle the speaker as desired and tighten the collar using the enclosed metal bar.Figure 2.Bracket on wall.Metal barABCWALL-MOUNTING THE SATELLITESTurn Off All PowerAfter placing the speakers, you are ready to connect your system. First, turn off all audio-system power. Use high-quality speaker wire to make your connections. #18-gauge speaker wire with polarity coding is included. For longer distances, #16-gauge or heavier wire is recommended. The side of the wire with a ridge or other coding is usually considered positive polarity (i.e., +). Also, consult the owner’s manuals that were included with your amplifier or receiver to confirm connection procedures.SatellitesObserve polarities when making speaker connections, as shown in Figure 3. Connect each + terminal on the back of the amplifier or receiver to the respective + (red) terminal on each speaker. Connect the – (black) terminals in the same way.Important!Do not reverse polarities (i.e., + to –, or – to +) when making con-nections. Doing so will cause poor imaging and diminished bass response. Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment.NOTE:On certain models using hexagonal terminal nuts, a small socket wrench is provided to help in properly tightening the terminals. Hand-tighten only and do not overtighten.SATELLITE SPEAKER CONNECTIONS Figure 3.Wiring diagram shows polarity connections for onechannel of a home theater system.67E n g l i s hSUBWOOFER CONTROLSRear PanelAC 220V-230V 50Hz-60Hz 220WattsPHASECS60SUB/230¡™£¢∞§ᕡSubwoofer-Level Control ᕢPhase Switch ᕣ LFE Input ᕤLine-Level Inputs ᕥPower Indicator LED ᕦPower SwitchSubwoofer ConnectionsIf you have a Dolby ®Digital or DTS ®receiver/processor with a low-frequency-effects (LFE) or subwoofer output:SUBWOOFER OR LFE OUTPUTRECEIVER/PROCESSOR4.5m (15')Subwoofer cable includedNOTE:If your receiver/processor has only one sub out, you may use either the L or R input.If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output:4.5m (15')Subwoofer cableincludedRECEIVER/PROCESSORImportant!Whenever changing cables, pulling plugs, etc., ALWAYS TURN OFF ALL EQUIPMENT, including the subwoofer.OPERATIONSurround ModesIf using the CS46 in a Dolby Digital or DTS home theater system, make sure all speakers are set to “Small”.Some Dolby Digital-equipped receivers/processors offer different setup options for each source or surround mode (e.g., CD-stereo, videotape, Dolby, Pro Logic). In each case, follow your equipment’s instructions to ensure that the subwoofer output is turned on and that the speakers are set to “Small” in each mode.Power OnPlug your subwoofer’s AC cord into a wall outlet. Do not use the outlets on the back of the receiver.Initially set the Subwoofer-Level Control ᕡto the“MIN” position. Turn on the subwoofer by pressing the Power Switch ᕦon the rear panel.Turn on your entire audio system and start a CD or movie soundtrack at a moderate level.Auto On/StandbyWith the Power Switch ᕦin the ON position, the LED on the rear panel ᕥwill remain lit in green or red to indicate the On or Standby mode of the subwoofer.RED = STANDBY (No signal detected, Amp Off)GREEN = ON (Signal detected, Amp On)The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system. The subwoofer will then power on instantly when a signal is detected. During periods of normal use, the Power Switch ᕦcan be left on. You may turn off the Power Switch ᕦfor extended periods ofnonoperation, e.g., when you are away on vacation.Adjust LevelTurn the Subwoofer-Level Control ᕡup about halfway. If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected to a “live” receptacle? Has the Power Switch ᕦbeen pressed to the ON position? Once you have confirmed that the subwoofer is active, proceed by playing a CD or DVD. Use a selection that has ample bass information.Set the overall volume control of the receiver/processor to a comfortable level. Adjust the Subwoofer-Level Control ᕡuntil you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to the belief that a subwoofer is there to produce lots of bass. This is not entirely true.A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive.Phase ControlThe Phase Switch ᕢdetermines whether the subwoofer speaker’s pistonlike action moves in and out with the main speakers (0˚) or opposite the main speakers (180˚). Proper phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position.Final PositioningAfter correctly connecting the CS46system and verifying that both the subwoofer and all satellite speakers are playing, it is time to optimize the system for your particular listening room. Earlier, you placed the subwoofer in its general location. Finding the exact location for optimum performance sometimes only involves moving the speakers up to a few inches in any direction. We urge you, therefore, to experiment with placement, if possible, until your speakers deliver their full potential.A Few SuggestionsWe recommend that you do not operate your speakers or subwoofer with the bass, treble and loudness controls set to full boost. This will place undue strain on your electronics and speakers and could damage them.The volume control setting on your processor/preamp or receiver is not a specific indication of the overall loudness level of the speakers. The only important consideration is the loudness level at which the system can be played, regardless of where the volume control is set.Always turn down the volume control setting on yourprocessor/preamp or receiver when changing sources, or switching inputs to AM or FM operation. Excessively loud transients (clicks or popping sounds) can damage the satellite speakers and possibly the subwoofer.Maintenance and ServiceThe satellite and subwoofer enclosures may be cleaned using a soft cloth to remove fingerprints or to wipe off dust.All wiring connections should be inspected and cleaned or remade periodically. The frequency of maintenance depends on the metals involved in the connections, atmospheric conditions and other factors, but once per year is the minimum.In the event that your system ever needs service, contact your local JBL dealer or distributor, or visit for a service center near you.8All features and specifications are subject to change without notice.JBL is a trademark of Harman International Industries, Incorporated, registeredin the United States and/or other countries. Pro Sound Comes Home is a trademark of Harman International Industries, Incorporated.Dolby and Pro Logic are registered trademarks of Dolby Laboratories.DTS is a registered trademark of DTS, Inc.PRO SOUND COMES HOME™®Harman Consumer Group, Inc., 250 Crossways Park Drive, Woodbury, NY 11797, USA 8500 Balboa Boulevard, Northridge, CA 91329, USA2, route de Tours, 72500 Château du Loir, France516.255.4JBL(4525) (USA only) ©2006 Harman International Industries, Incorporated. All rights reserved.Part No.406-000-05542-E。
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L扬声器扬声器<简称音箱>是音响系统的喉舌,直接影响还音的音质,是音响系统最关健的部份.它如像歌星的嗓子,有了好的歌喉,才能唱出优美动听的歌曲.因此,如何选择好声音宏亮、音质优美、失真极微、工作可靠的扬声器是广阔用户共同关心和追求的目标.L作为专业扬声器生产商的先驱者,我们有责任向大家介绍 .※一>如何选择扬声器?扬声器实际上是一种把可听X围内的音频电功率信号通过换能器<扬声器单元>,把它转变为具有足够声压级的可听声音.为能正确选择好扬声器,必须首先了解声音信号的属性,然后要求扬声器能 "原汁原味〞地把音频电信号复原成逼真自然的声音.人声和各种乐声是一种随机信号,其波形十分复杂.可听声音的频率X围一般可达20HZ-20KHZ;其中语言的频谱X围约在150HZ-4KHZ左右;而各种音乐的频谱X围可达40HZ-18KHZ左右.其平均频谱的能量分布为:低音和中低音局部最大,中高音局部次之,高音局部最小<约为中、低音局部能量的10/1>; 人声的能量主要集中在200HZ-35KHZ频率X围.可听随机信号幅度的峰值比它的平均值均大10-15DB <甚至更高一点>.因此扬声器要能正确地重放出随机信号,保证重放的音质优美动听,扬声器必须具有宽广的频率响应特性,足够的声压级和大的信号动态X围.我们希望能用相对较小的信号功率输入获得足够大的声压级,即要求扬声器具有高效率的电功率转换成声的灵敏度.此外我们还要求扬声器系统在输入信号适量过载的情况下,不会受到损坏,即要有较高的可靠性.还有一点是用户希望能买到"物美价廉〞的好产品,即性能价格比高的产品,最后还要考虑产品的配套方式,外形结构和吊装方法等条件.※二>扬声器系统主要技术特性的应用扬声器系统有许多与音色效果和使用场合直接有关的技术特性,为了用好用活技术特性,用户必须对它们有所了解.1>二路<二分频>和三路<三分频>扬声器系统音频信号的频谱X围很宽,把20HZ-20KHZ的信号要用一种扬声器单元是无法满足整段频响的;因为一般的12寸以上大口径扬声器单元,低音特性很好,失真不大,但超过1.5HZ的信号,它的表现就很差了;1-2寸的高音扬声器单元<高音压缩驱动器>重放3KHZ以上的信号性能很好,但无法重放中音和低音信号.于是就有了由各种频响特性单元组成的扬声器系统,由低音<含中低音>和高音<含中高音>两种单元组成的称为二路扬声器系统,由低音、中音和高音三种单元组成的称为三路系统.二路扬声器系统结构简单,造价相对较低,为了解决缺少这段中音频率.于是有些厂家用了一种折衷的方法,即在分频网上把低音单元的频响特性向上移动,把高音单元的频率特性向下移动.另外一个问题是,分频交叉点频率只能设定在500HZ-2KHZ之间,而此区域正是人声和乐声频谱的重要局部.因此在听觉上会留下"空洞〞感和可闻的失真<当然分频器的斜率特性大些,例如,18DB/倍频程,此缺陷可得到一些补偿>.亦因为如此,二路扬声器对喇叭单元的要求相对较高,假假如单元的性能不佳,整个扬声器系统的声音就不够平滑,或有严重的相位失真.三路扬声器系统各单元的特性可不作折衷,充分发挥它们各自的长处,两个分频交叉点可选在中音人声和乐声频谱重要部份的上、下边缘处,对音质没有任何影响,故三路扬声器系统小了声音的失真,提高了声音的清晰度,改善了低音和高音间交叉频段的性能,增加了扬声器系统的功率处理能力.因此是文艺演出、音乐厅和歌剧院扩声系统的最优选择.2>灵敏度和最大声压级<SPL MAX>扬声器单元是一种电信号与声音之间的换能器,要求它能以相对较小的输入功率换成很宏亮的声音,这就求扬声器有较高的声压灵敏度.「灵敏度」实质是一种「转换效率」的表现. 各类扬声器系统由于设计技术、选用的材料和生产工艺等多方面的差异,灵敏度的差异也很大.灵敏度是指输入扬声器单元1瓦的电功率,在扬声器轴线方向离开1米远的地方测得的声压级大小.如果两种扬声器的灵敏度相差3DB,要达到同样大的声压级输出,需要增加电输入功率一倍,因此灵敏度较高的扬声器能发出较大的声音.扬声器系统的输入功率能力一般都远远大于1瓦<一般都在100瓦-2000瓦之间>,因此实际使用时都可输入这个最大允许的电功率.以额定最大功率,输入扬声器,在扬声器轴向1米处生产的声压级称为最大声压级SPL MAX.例,灵敏度=100DB,1W/1M的扬声器,假如具最大功率承受能力为1000W, 如此SPLMAX=100DB+30DB= 130DB,1M.另外大家关心的间题是两个一样声压级的扬声器箱放在一起的合成声压级到底增加多少?--------- "回答是：在室内混响声场两倍半径以外的地方约增加3DB.〞这里就引出了一个性能/价格比的经济核算问题. 例如,一个SPL1=90DB的音箱,单价为5000元,另一种音箱的SPL2=99DB,单价为2万元,如果系统要求达到99DB的声压级,那么声压级低的音箱要用8个<8×5000 =4万元>,另一种高声压级的音箱只要用1个<2万元>就足够了,此外8个音箱还需用8倍的功率推动,更增加了投资本钱.3>失真和音质非常遗憾,音箱工厂都没有标称他们产品的失真率,其实它是一个非常重要的技术参数.音质是一个比拟抽象的评价,亦没有可能在文件上标称,只能采取主观的听音比试.通常,灵敏度和音质是有矛盾的,生产商需要在两者中作适当的平衡.一般来说,中低价的产品,均以灵敏度作主导,追求性能价格比. 而高价位产品偏重音质.而最高层次者是两者兼备.4>「个性」与「共性」在此又再引伸出另一个相对抽象和主观的性能评价.扩声用的音响,有别于家中的HI-FI音响器材, 必须兼容性非常高,因为每个场地都可能演出不同类型的节目从歌剧到摇滚音乐会,亦可能只是以语言信号为主的报告会...故其音响系统必须要兼容不同的节目源,做到「平均性」的优异,即不能偏重于某一个用途.而家里的HI-FI音响器材,只需要照顾一个人或一小撮人的口味,其产品的「个性」是容许存在.但作为专业扩声系统器材,如此这种「个性」将会变成「局限性」或「缺陷」.专业扩声器材需要为一大群公众服务,节目内容经常变换,「共性」是根本要求,兼容性要强,不同性质的节目都要有「平均」的表现.除此之外,专业扩声器材必须是无"无渲染〞,"不夸X〞,"忠实〞地将音源复原. 这就是「共性」或「共用性」.5>扬声器系统的指向特性扬声器发出的声音通常在低频段<低于200HZ>的声音是无方向性的,在各方向均匀传播.但在高频段时,声音的传播呈现较强的方向性,这个指向特性<各类音箱均不相崐同>正是我们在系统设计中要加以应用的.优良的恒定指向特性可在现场布置时把声波的能量集中到观众区, 避开声波的强烈反射面和声场互相干扰.试举一个比拟容易相差明白的例子,市面上的手电筒.一支普通的手电筒与一支有聚光功能的手电筒,价格可以相差数拾倍.一般的手电筒就算其功率与聚光手电筒一样,但光线无法投射很远,而且无法控制投射区域.音箱的高音局部与手电筒的光线相当类似. 假如只需要有声音,档次的音箱都能办得到,就等于任何一支普通手电筒也能照明一样了.但作为大型工程,必须有效地控制声场分布与考虑可投射的距离.指向性的优劣,足以影响工程的成败,必须选择有优良指向性的音箱. 扬声器的指向特性使偏离轴向的声压级随偏角的增大而压级逐渐减小;同时声压级又随声波传播距离的增加按距离的平方成反比而衰减,在距扬声器远近和方位不同的听众区,假如将这两种衰减选择得当,就可使两种衰减互相补偿,从而使声场更为均匀.大型工程需要覆盖相比照拟阔的区域,单只音箱通常不足以应付,需要将多只音箱拼合成音箱群<阵列>.而在阵列扬声器系统中,恒指向特性可使音箱之间的中、高频段的声波在音箱间不产生干扰.用具有上述恒指向特性的一对扬声器组成型摆放,可以覆盖单个音箱的一倍.否如此,声音在音箱前方已经互相干扰,严重影响声场的均匀度和声音的清晰度.6>扬声器系统的功率处理能力扬声器系统的功率处理能力<或称扬声器的额定功率>是一项重要技术参数,它代表扬声器承受长期连续安全工作的功率输入能力,了解扬声器的功率处理能力,首先必须懂得扬声器驱动器是如何损坏的,驱动器的损坏模式有两种:一种是音圈过热损坏<音圈烧毁,过热变型,圈间击穿等>, 另一种是驱动器的振膜位移量超过极限值,使扬声器的锥型振膜和/或其周围的弹性部件损坏,通常发生在含有很多大振幅的低频信号.声音信号不是一种纯正弦波信号,而是一种随机的,随机信号可用三个参数来表式:有效值<RMS>又称均方根值,是以信号峰值等幅的正弦信号的一种测量结果,接近于平均值,根本上代表信号的发热能量.峰值<PEAK>是信号达到的最大电平,对于正弦波来说,峰值电平大于有效值电平3DB, 对于音乐信号来说,峰值电平超过有效值可达10-15DB,在评定一种扬声器的位移能力时,峰值是重要的.峰值因子,用来说明峰值电平与有效值电平的比率,对于按AES2-1984的粉红色噪声源来说,峰值因子为6DB,即峰值电压是有效值电压的4倍.扬声器的功率处理能力是按<AES2-1984>处理后的粉红色噪声信号连续加2小时工作后,其电性能和机械性能的永久性变化不大于10%的情况下测得的技术参数.7>加载<受热>后的声压级下降<又称功率压缩>所有产品说明书上标称功率都是各厂家自定的,是音箱在厂方选定的测试信号和条件下的最优值.当音箱进入工作状态<譬如等于或大于满功率20秒之后>,音圈和磁体受热温升后,由于它们性能下降改变了受热前单元的原有特性,这时,实际的声压输出就会减少.常规音箱,如音圈温升60℃-80℃,常见额定声压级下降3DB为容限,如音圈散热优异,而温达100℃以上,实际的声压下降可达6至8DB,这是相当惊人的下降.如前文题与,增加一倍的音箱只提升声压级3DB,假如音箱声压级下降达6DB,要弥补这么大的声压级下降,必须由原来的一只音箱增加至四只.非常遗憾,音响工业界没有标称这种声压级下降的习惯,用户只能自行比试各种品牌择优选用.假如要改善这种声压级的下降,必须更好的改善扬声器单元的散热设计.8>扬声器单元的阻抗扬声器单元的阻抗包含,电感量,电容量和电阻值.电感和电容是随频率而变化的.虽然在扬声器系统中标称一个阻抗,例如8欧姆,4欧姆,但这个数值会跟随频率变化而改变.假假如阻抗变化太大,将会影响整个音响系统的稳定性.L最新的DCD双线圈差驱动设计是将阻抗变为「纯电阻」性,不受频率变化而影响,让整个音响系统稳定工作.※三>如何提高扬声器系统的可靠性日常生活中,即使是在功放和扬声器系统的功率匹配相当的情况下也会发生扬声器单元受损的事件.其原因有 :1.操作不当,功放输出功率过大2.演出达到高潮时,场内气氛热烈,需要提升声压,在加大信号时,话筒输入信号过大,引起功放过载削波,失真波形产生大量谐波,损坏高音单元.3.话筒产生强烈声反应啸叫,功放强烈过载,损坏扬声器系统.为此,现代新型扬声器系统采取了多种保护性措施,措施可分为两类: <1>提高扬声器单元的散热力,使其在过载时不发生过热损坏. <2>在扬声器箱中安装限幅保护装置,当驱动功率和峰值电平超过扬声器的额定值时,限幅器把超过的功率电平用非线性电阻<灯泡>对音圈进展阻止.措施,提高了扬声器抗过载的能力,但也影响了声音的动态X围,使音域不够宽广,音色感觉模糊和暗淡.因此,最好的方法还是在功放上采取措施,使它的输出不产生削波和功率过载等问题.※四>L 扬声器系统采取了哪些新技术措施?美国L公司近年来为不断提高扬声器系统的各种性能,在设计和生产中采取了许多行之有效的新技术措施.高音单元:.采用轻如薄纸,比钢还硬,厚度仅为0.001寸的三维钻石花纹压边的钛合金振膜专利技术, 这种技术不仅使高音更为清晰明亮,而且还能够承受更大的冲击力..音圈导线采用特制的方形截面铝合金导线,加上特别的绝缘漆皮,使音圈既轻又密, 提高了功率容量,也提高了声压灵敏度..采用磁液<MAGNETIC FLUID>改善了音圈散热条件,增强了抗过载能力..采用新颖的KAPTON 材料作为音圈支架,这种材料的导热系数比常规材料大2倍,而且能承受更高的温度,确保音圈在高温时仍能正常工作."SONICGUARD"声音的保镖"是L一项突破性的发明,它防止了突如其来的大功率的峰值信号或长时间过荷所造成的高音单元损坏.SONICGUARD与一般的限幅保护技术的不同点,在于它能让音乐中许多动态非常大而其能量又不足以烧毁音圈的信号照样通过;会对过荷能量和具有破坏性的峰值信崐号自动分流衰减至安全水平.这个过程是在无声无息的状态下自动进展的, 达到了既保护了音箱单元又不会牺牲音质<乐感和清晰度>两全齐美的目的.中音/ 中高音单元:为配合新型号筒,L专门开发了2447等超大型压缩驱动器,高频响应平坦至18KHZ, 并改善了中音音质,令整个中高段的声音更清晰明快而又不刺耳,用这种单元组成的二路扬声器系统,其性能可与三路系统媲美.低音单元:SVG和VGC散热设计的换能器,低音扬声器单元经常要连续承受很大的功率,只将一小局部电影能量转换为声能,大部份变为有害的热能,音圈发热后,开始时输出声压级缩小,然后声音失真加大, 最后会把音圈烧毁.为有效地提高输出,必须改善音圈的散热条件.L的SVG和VGC专利设计上在驱动器的喉口上做了多条空气槽,利用振膜的振动形成空气对流,能有效地驱散热量..特大型4寸音圈和大振膜不仅提高了功率容量,而且还延伸了频响,改善了失真..采用高性能磁钢材料 - 磁钢.它的磁场强度比传统的磁性材料高10倍以上,高效磁钢提高了扬声器的声压灵敏度,改善了动态X围,还减轻了重量..大功率、低损耗的优质分频器大功率的优质分频器也是直接影响音色的关键部件.分频器必须与扬声器单元特性准确配合,才能获得平坦的特性,正确的分频点和小的非线性失真,才能获得好的音质,L成功地把原先的分频斜率 12DB/倍频程提高到18DB/倍频程,使音色更清晰,令单元间的相互干扰降至最低. 用于L扬声器上的分频器的设计,选料和制做都是下了很大功夫的,采用了特制的四引线电阻,超低电阻的电感器和精细的低损耗苯乙稀电容器等等.全新概念的高科技产品-EON系列有源音箱:EON<依安>系列有源音箱采用全新概念设计和先进的生产工艺技术,使它成为最受欢崐迎的物美价廉、多用途的便携式产品.EON系列音箱采用了高性能磁性材料磁钢、以铝代钢的盆架和以塑代木的箱体,特殊又巩固的一体化箱体侣板结构,使其重量大大减轻, 便于携带,也便于固定安装.EON的高、低音单元全部采用上述各项新技术措施外,还首次采用了反向串连的差动式双音圈技术, 使扬声器的阻抗呈现"纯电阻〞性质,因此频响特别宽广平坦,音色极为清晰优美.EON的内置功放散热巧妙地利用了音箱回音孔在振膜振动时产生的空气流,把热量带到箱体外,因此他能在恶劣的室外环境中长期连续使用.300小时满功率负载的考验---L对你的质量保证.按照美国电工的标准AES2-1984的规定,扬声器单元只要通过2小时满功率负荷的考验就算合格,L将这个考验标准自动提高到300小时,这是L对用户质量的保证.※五>扬声器系统需配置多大输出功率的功放?扬声器系统要高质量的重放出各种音乐节目,那么根据音乐信号的属性,其峰值因子约为10-15DB,从保证音质这个角度来说,功放应在此动态X围内不发生任何限幅情况,即功放的最大输出功率应是扬声器额定功率的5-8倍,这样的功率配置音质虽然很好,但他的投资会很大,因此一般都会把这个功率配比定在1-2倍扬声器单元的额定功率.1-2倍的这个X围也许太空泛了,我们可以给大家一个较具体的经验.1.在一些要求较低而投资有限的工程,功放的功率起码相当于音箱的额定功率.但要非常注意保持声音不失真.过小的功率配置看起来不会损坏扬声器单元,其实不然.过小的功率极易发生过载削波,产生大量谐波,烧毁高音单元.3.要求极高的场地,例如录音室监听,音乐厅等,最理想是音箱功率的两倍匹.<这与国际电工委员会IEC制定的配接标准推荐值中的一种方案一致>.设计功放功率是没有硬性标准的,完全视乎投资预算和对音质的要求而定.固定安装用音响器材※半个世纪以来,L遍布全世界每一个角落,曾为亿万用户服务,著名工程不胜枚举,不能一一尽录.L已经成为一个技术水平的标准,设计师和工程商的一个典X参考.。