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5W 单声道高保真 D 类音频功率放大器 PA8157 产品手册说明书

PA8157是一款高保真、高效率、低EMI、免滤波、5W单声道D类音频功率放大器。

PA8157内部集成智能增益控制（AGC）功能，通过检测输出信号的大小智能调整系统的增益，避免了过载对于扬声器的损害，防止了音量过大时破音，提高了听觉体验。

PA8157采用了全差分免滤波PWM调制的系统架构，具有较好的抗干扰能力。

其内部集成的过温保护、欠压保护、过流保护、“咔哒”杂音抑制等功能模块，给PA8157提供了更强壮的鲁棒性，使其拥有了更好的适应能力。

PA8157采用了典型的SOP_8封装。

图1.典型应用图应用蓝牙音箱便携式音响设备玩具特点免滤波D类集成（自动增益控制）AGC功能输出功率5W@2Ω（THD+N=10%，5.3V）工作电压域：2.5V～5.5V低失真THD+N=0.04%@1W，5VPOP声抑制效率最高达88%高PSRR=75dB@217Hz过流、过温、欠压保护全差分/单端输入低噪声70μVrms（GAIN=10V/V）失调电压<20mV静态电流6mA@5V关断电流<0.1μASOP_8封装图2.PA8157封装图管脚定义极限参数注1注1：超出以上所列极限参数，可能造成器件的永久损坏。

以上给出的仅是极限范围，在这样的极限条件下工作，器件的技术指标不予保证。

长期在极限条件下工作，会影响器件可靠性。

R IN=10KΩ，C IN=100nF，T A=25℃，VDD=3.8V，除非有特殊说明图3.谐波失真+噪声 Vs. 输出功率图4.谐波失真+噪声 Vs. 频率图5. 输出功率 Vs. 输入幅度图6. 增益 Vs. 频率图7. 效率 Vs. 输出功率图8. AGC触发时间图9. AGC释放时间图10. PA8157测试原理图PA8157为脉冲输出方式，如图9所示，需要在两个输出各接一个低通滤波器将开关调制频率滤除，然后测量滤波器的差分输出即可得到模拟输出信号，VOP和VON被低通过滤后的差分输出波形和相减后的波形如下图所示。

PA中文说明书

ALLEN&HEATH PA系列使用手册PA系列混音器可提供一个标准的PA系统需要的所有音频信号处理工具，并使您的操控能够做到“随心所欲”。

您不仅很快就会熟悉并得心应手的操控他们，而且您还会发现他们所具备的许多创新的性能充分融合了设计师多年的现场调音经验。

如果您再仔细地检查一下他们的质量，您就更会欣赏他们标准化的结构：与我们的旗舰产品ML系列调音台有同样的单独的垂直型电路板，同样的电位器帽，同样的铜质内部耦合界面。

下面的几款PA调音台是带有双功率放大器的型号。

PA12-CP有8路单声道和2路立体声通道输入。

PA20-CP有16路单声道和两路立体声输入。

这两款在侧面均有保护装饰，在前面有便携手提把手。

双功放的配置可以根据现场扩音情况的不同来自由的使用。

例如，您可以用其来做没有返送系统的立体声主扩系统，或是有返送和单声道的系统，再或是与外部功放相连，用这台设备做两个独立的返送系统。

同时也可使用额外的单声道输出用于超低音的信号通道等等。

PA-CP系列的功率放大器是第三代的设计，其在出场之前都是已经做了严格的可靠性和声音质量的测试，其输出功率采用4Ω和8Ωohms可切换式恒定功率设计，功率均为2x500W/8Ω。

精准的均衡调节为音乐的创作和有效的抑制房间声反馈提供很大的方便。

所有输出通道都有四段的参量均衡，每个频段均设置有扫频旋钮，我们是通过理论的分析和实际存在的声染色等问题研究和测试以后，决定设置参量均衡，而不用图示均衡的。

并且我们的“EQ Visualiser”软件将会告诉您参量均衡对频率产生的作用，并可以通过此软件与调音台的MIDI口连接来自定义您所需要的效果。

快速启动1.确保安全:首先要确认设备的工作电压与您当地的供电电压是否一致，检查后面板的ON/OFF是否置于off的状态。

用随机配送的电源线将调音台与电源插座相连接。

在没有检查好所有的连线和控制设置之前不要打开任何开关。

并且要确保在前面和侧面机身的通风口处不要有东西挡住。

PA6002广带RF线性功率放大器用户说明书

The PA6002 Wideband RF Linear Power Amplifier is highly reliable and suitable for all applications where its output power of 10 watts (15 watts) and wide frequency range (9 kHz to 230 MHz) suit the needs of the test engineer. Able to withstand even high VSWR, the PA6002 is a perfect companion in any radiated and conducted measurement chain: on the product designer’s workbench, in the EMC test laboratory, for in-situ testing, etc.The PA6002 Class A Linear Solid-State Amplifier features a compact and rugged construction, and its MOSFET technology provides high gain, low distortion, consistent performance and high reliability all across the wide frequency band. An analog meter makes it possible to monitor output signal amplitude at a glance, and an alarm LED provides a useful indication when current or temperature levels are outside specifications.The power amplifier can be used with any EMI signal generator, power sensor, CND, EM clamp, current injections clamp and directional coupler for all conducted and radiated, civilian, military and automotive measurements .The complimentary PMM Immunity Suite software delivered with the PA6002 can be used on any PC to automatically perform simple yet complete and effective tests, as it manages all the measurement settings and functions required by the chosen immunity standard .Wideband RF Linear Power AmplifierMain Features•Meets civilian and military standards (e.g. IEC/EN 61000-4-3; IEC/EN 61000-4-6; ISO 11452-4; MIL-STD-461G; etc.)•Suitable for conducted, radiated and automotive immunity tests •9 kHz to 230 MHz frequency range•10 W power output (15 W from 150 kHz to 80 MHz) •40 dB power gain•Class A linear solid-state amplifier •50 Ω input/output impedance • Analog meter and LED indicators • Fan air cooling•Robust and compact constructionOrdering information:PA6002 Wideband RF Linear Power AmplifierIncludes: Power supply cable, BNC-BNC cable, N-m to BNC-f adapter, user’s manual, standard calibration certificateOptional accessories:3010 EMI Signal Generator 9 kHz to 1 GHz3030-01 EMI Signal Generator 9 kHz to 3 GHz, AC supply3030-02 EMI Signal Generator 9 kHz to 3 GHz, AC supply, internal rechargeable battery 6630 USB RF Power Sensor 9 kHz to 3 GHz 6630 FOA Fiber Opic AdapterEP-600 Field probe 100 kHz to 9,25 GHz 0,14 to 140 V/m EP-601 Field probe 10 kHz to 9,25 GHz 0,5 to 500 V/m EP-602 Field probe 5 kHz to 9,25 GHz 1,5 to 1500 V/m EP-603 Field probe 300 kHz to 18 GHz 0,17 to 170 V/m EP-604 Field probe 300 kHz to 26,5 GHz 0,4 to 800 V/m OR03 Optical Programmable Repeater and its probes SB-10 Switching control boxEM Clamps, Current injections clamps, Directional couplers, CDN for mains, Unshielded/ Unbalanced lines CDNs, Shielded lines CDNs, Balanced lines CDNs, 6 dB attenuators, CDN calibration kit and accessories ; for full list and configurations please refer to COND-IS and RAD-IS system documentationGenerators/Receivers/SystemsAntennas/Calibration servicesLISNs/Probes• 1008: Magnetic field generator system • 7010/00: EMI Receiver 150 kHz to 1 GHz • 7010/01: EMI Receiver 9 kHz to 1 GHz • 7010/02: EMI Receiver 9 kHz to 30 MHz • 7010/03: EMI Receiver 9 kHz to 3 GHz • 9010: EMI Receiver 10 Hz to 30 MHz • 9010F: EMI Receiver 10 Hz to 30 MHz• 9010/03P: EMI Receiver 10 Hz to 300 MHz • 9010/30P: EMI Receiver 10 Hz to 3 GHz • 9010/60P: EMI Receiver 10 Hz to 6 GHz • 9030: EMI Receiver 30 MHz to 3 GHz • 9060: EMI Receiver 30 MHz to 6 GHz • 9180: EMI Receiver 6 GHz to 18 GHz • FR4003: Field Receiver 9 KHz to 30 MHz • COND-IS: RF Conducted Immunity System • RAD-IS: RF Radiated Immunity System •AUT-IS: Automotive Immunity System• BC-01: Biconical Antenna 30 to 200 MHz• DR-01: Double-ridged horn Antenna 6 to 18 GHz • LP-02: Log Periodic Antenna 200 MHz to 3 GHz • LP-03: Log Periodic Antenna 800 MHz to 6 GHz • LP-04: Log Periodic Antenna 200 MHz to 6 GHz • TR-01: 60-180 cm wooden extendable tripod• VDH-01: Van der Hoofden Test Head 20 kHz to 10 MHz • Antenna Set AS-02 (BC01+LP02+TR01)• Antenna Set AS-03 (BC01+LP02+LP03+TR01) • Antenna Set AS-04 (BC01+LP04+TR01)• Antenna Set AS-05 (BC01+LP04+DR01+TR01)• RA-01: Rod Antenna 9 kHz to 30 MHz• RA-01-HV: Rod Antenna 150 kHz to 30 MHz • RA-01-MIL: Rod Antenna 9 kHz to 30 MHz • Ansi 63,5 Antenna Factor • SAE ARP 958-D• Free-Space Antenna Factor• CAL-6630: Traceable calibration •LAT-6630: Accredited calibration• L2-16B: single phase AMN, 16 A • L3-32: 4 lines, 3-phase AMN, 32 A • L3-64: 4 lines, 3-phase AMN, 63 A• L3-64/690V: 4 lines, 3-phase AMN, 63 A • L3-100: 4 lines, 3-phase AMN, 100 A• L1-150M: single-path, 50 Ohm AMN, 150 A • L1-150M1: single-path, 50 Ohm AMN, 150 A • L1-500: single phase AMN, 500 A • L3-500: 4 lines, 3-phase AMN, 500 A • L2-D: Delta LISN for telecom, 2 A, 150 Ω• RF-300: Van Veen Loop • SBRF4: RF Switching Box• SHC-1/1000: Voltage probe, 1000 Vac, 35 dB • SHC-2/1000: Voltage probe, 1000 Vac, 30 dBRelated products and servicesP A 6002-F E N -70501 - S p e c i fi c a t i o n s s u b j e c t t o c h a n g e w i t h o u t n o t i c eHeadquarters:Via Benessea, 29/B17035 Cisano sul Neva (SV) - ITALY Phone: +39 0182 58641Fax: +39 0182 586400E-Mail:***********************Internet: www.narda-sts.itSales:Via Leonardo da Vinci, 21/2320090 Segrate (Milano) - ITALY Phone: +39 02 2699871Fax: +39 02 26998700PA6002Wideband RF Linear Power AmplifierSPECIFICATIONSFrequency range Power output CW Power gain Gain flatness Drive levelInput return loss Harmonic distortion RF input RF outputPower indication LED indicators Power supplyOperating temperature Operating humidity Storage temperature Dimensions (W x H x D)Weight9 kHz to 230 MHz10 W; 15 W from 150 kHz to 80 MHz 40 dB+1 dB -1,5 dB0 dBm (1 mW) for 10 W output < 20 dB < -20 dBcZin 50 Ω, BNC female Zin 50 Ω, N female Analog meter, 20 W f.s.Power/current limiter and temperature alarm85 to 264 Vac 47 to 440 Hz / 120 to 370 Vdc 60W 0 °C to +40 °C0 to 90% RH (without condensation)-40 °C to +70 °C 235 x 105 x 300 mm 4,5 kgTypical gain @ nominal power (dB)Power output @ 1 dBc (W)。

PA中文说明书

ALLEN&HEATH PA系列使用手册PA系列混音器可提供一个标准的PA系统需要的所有音频信号处理工具，并使您的操控能够做到“随心所欲”。

您不仅很快就会熟悉并得心应手的操控他们，而且您还会发现他们所具备的许多创新的性能充分融合了设计师多年的现场调音经验。

下面的几款PA调音台是带有双功率放大器的型号。

PA12-CP有8路单声道和2路立体声通道输入。

PA20-CP有16路单声道和两路立体声输入。

这两款在侧面均有保护装饰，在前面有便携手提把手。

双功放的配置可以根据现场扩音情况的不同来自由的使用。

例如，您可以用其来做没有返送系统的立体声主扩系统，或是有返送和单声道的系统，再或是与外部功放相连，用这台设备做两个独立的返送系统。

同时也可使用额外的单声道输出用于超低音的信号通道等等。

精准的均衡调节为音乐的创作和有效的抑制房间声反馈提供很大的方便。

并且我们的“EQ Visualiser”软件将会告诉您参量均衡对频率产生的作用，并可以通过此软件与调音台的MIDI口连接来自定义您所需要的效果。

快速启动1.确保安全:首先要确认设备的工作电压与您当地的供电电压是否一致，检查后面板的ON/OFF是否置于off的状态。

用随机配送的电源线将调音台与电源插座相连接。

在没有检查好所有的连线和控制设置之前不要打开任何开关。

并且要确保在前面和侧面机身的通风口处不要有东西挡住。

ONKYO 9 声道功率放大器 PA-MC5500 说明书

RO T RO T
W DE L FT W DE L FT
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R GH
RO T W DE R GHT
RO T W DE R GHT
P B ONE ET
SP B Z NE LF
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SP B ONE R GHT SP B ONE R GHT
SP B Z NE2 R GHT
9 声道功率放大器
PA-MC5500
使用手册
目录
使用之前........................................................ 2 操作 ................................................................. 6 连接 .............................................................. 10 附录 .............................................................. 17
*1
THX 和 Ultra2 为 THX Ltd. 公司的商标。 THX 可能在某些司法管辖地注册。版权专有。 *2 视 AV 控制器而定。
Cs-3
目录
使用之前
重要的防护措施 ................................................................2 注意事项 ............................................................................3 特点 ....................................................................................4 附件 ....................................................................................5 放大器注意事项 ................................................................6

DSPPA广播系统说明书

【（1）、投标综合说明】DSPPA公共广播系统设备一、公共广播系统概述二、DSPPA 公共广播系统器材性能介绍三、厂区的公共广播/背景音乐示意四、厂区的公共广播/背景音乐示意一、公共广播系统概述DSPPA 广播音响系统涉及面很广，从工厂、学校、宾馆、车站、码头、广场到会场、影剧院、体育馆、住宅小区等无不与之有密切关系。

在民用建筑工程设计中，广播系统可分为以下几类：面向公众区（广场、车站、码头、商场、餐厅、走廊、教室等）和停车场等的公共广播系统。

这种系统主要用于语音广播，因此清晰度是首要的。

而且，这种系统往往平时进行背景音乐广播，在出现灾害或紧急情况时，又可转换为紧急广播。

面向宾馆客房的广播音响系统。

这种系统包括客房音响广播和紧急广播，常由设在客房中的床头柜放送，客房广播含有多个可供自Public Address System公共广播系统由选择的波段，在紧急广播时，客房广播即自动中断，自动切换为紧急广播。

以礼堂、剧场、体育馆为代表的厅堂扩声系统。

这是专业性较强的扩声系统，它不仅要考虑电声技术问题，还要涉及建筑声学问题。

两者都要统筹兼顾，不可偏废，这类广播系统往往有综合性多用途的要求，不仅可供会场语言扩声使用，还常用于文艺演出等，对于大型现场演出的音响系统，电功率少则几万，多的达数十万瓦，故要用大功率的扬声器和功率放大器，在系统的配置和器材选用方面有一定的要求，同时应注意电力线路的负荷问题。

面向会议室、报告厅等的广播音响系统。

这类系统一般也是设置成公共广播提供的背景音乐和紧急广播两用的系统，但因其特殊性故也常在会议室和报告厅单独设置会议广播系统。

对要求较高或国际会议厅，还需另行设计诸如同声传译系统，会议表决系统以及大屏幕投影电视等的专用视听系统。

从上面介绍可知，对于各种大楼、宾馆及其他民用建筑物的广播音响系统，基本上可以归纳为三种类型：一是公共广播系统（Public Address System简称PA），这种是有线广播系统，它包括背景音乐和紧急广播功能，通常结合在一起，平时播放背景音乐或其他节目，出现火灾等紧急事故时，转换为报警广播。

广播系统-PA

一键取消功能
外部音源接入
可接入外部音源设备，在其它音源播出时，背景音乐自动停止
在车站广播控制终端失效时，利用广播控制台可以进行广播操作，实现上述各种广播功能
后备模式
紧急广播功能
当车站广播控制单元内选区广播模块发生故障时，按下紧急广播按键，将车站广播控制台的音频通过应急通道直接送与功放，此时打开全部广播区，进行全区广播
控制功能一键取消功能编组功能监听功能背景音乐功能话筒广播功能故障显示功能2020513分区管理功能显示占用功能监听功能显示功能功能图标显示人员操作指示选区选择图标广播区分布电子地图各级广播占用指示选区占用的指示权限内管辖广播选区进行选择监听监听音量可调202051310广播分区占用显示功能广播分区管理监听功能外部音源接入紧急广播功能后备模式一键取消功能led显示灯显广播区选择在车站广播控制终端失效时利用广播控制台可以进行广播操作实现上述各种广播功能当车站广播控制单元内选区广播模块发生故障时按下紧急广播按键将车站广播控制台的音频通过应急通道直接送与功放此时打开全部广播区进行全区广播可接入外部音源设备在其它音源播出时背景音乐自动停止权限内管辖广播选区进行选择监听监听音量可广播区占用指示当车站广播控制台误播一键取消键可立即切断正在进行的广播202051311广播控制台操作功能广播分区管理占用显示显示功能广播选区管理后备模式显示功能广播选区占用背景音乐功能202051312tg200a功放车站控制单元tg200az功放噪声输入单元qh112切换分tg200a功放工控机电源时序控制202051313tg200a前面板图tg200a后面板图202051314tg200a功率放大器的功能
2019/4/8
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栅格吊顶扬声器

DSPPA广播系统说明书

在民用建筑工程设计中，广播系统可分为以下几类：面向公众区（广场、车站、码头、商场、餐厅、走廊、教室等）和停车场等的公共广播系统。

这种系统主要用于语音广播，因此清晰度是首要的。

而且，这种系统往往平时进行背景音乐广播，在出现灾害或紧急情况时，又可转换为紧急广播。

面向宾馆客房的广播音响系统。

以礼堂、剧场、体育馆为代表的厅堂扩声系统。

这是专业性较强的扩声系统，它不仅要考虑电声技术问题，还要涉及建筑声学问题。

面向会议室、报告厅等的广播音响系统。

这类系统一般也是设置成公共广播提供的背景音乐和紧急广播两用的系统，但因其特殊性故也常在会议室和报告厅单独设置会议广播系统。

对要求较高或国际会议厅，还需另行设计诸如同声传译系统，会议表决系统以及大屏幕投影电视等的专用视听系统。

奥拉斯声商业扬声器放大器PA40G PA60G说明书

Specifications are subject to change without notice.PA40G / PA60GCommercial AmplifiersPA40G / PA60G Commercial AmplifiersPA40G Front Silkscreen Artwork Left InRight In1601 Jack McKay Blvd Ennis, TX 75119800.876.333360 Watts 70.7V/100V Speaker OutPA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Table of ContentsImportant Safety Instructions (3)Introduction (5)Key Features (5)Applications ............................................................................................................................................ 5 Front Panel Description ...........................................................................................................................6 Rear Panel Description ............................................................................................................................7 Wiring the PA40G / PA60G ......................................................................................................................7 Optional Level Control Security Cover ....................................................................................................8 Optional Rack Mount Kit . (8)Limit LED & Load Considerations (8)Specifications ........................................................................................................................................10 Warranty (12)– 3 –Specifications are subject to change without notice.PA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Important Safety Instructions1.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 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 are 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 specified by the manufacturer, or sold with the apparatus. When a cart is used use caution when moving the cart/apparatus combination to avoid injury from tip-over.13. Unplug this apparatus during lightning storms or when unused for long periods of time.14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.15. WARNING: To reduce the risk of fire or electric shock, this apparatus should not be exposed to rain or moisture and objects filled with liquids, such as vases, should not be placed on this apparatus.16. To completely disconnect this equipment from the mains, disconnect the power supply cord plug from the receptacle.17. The mains plug of the power supply cord shall remain readily operable.The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage “ within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in theliterature accompanying the product.– 4 –PA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435When The Device Is In Use• To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer all servicing to Atlas Sound.• Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the AC outlet and contact Atlas Sound. Do not to attempt to continue operation with the product as this may cause fire or electric shock: • Smoke or strange smell coming from the unit. • If the product falls or the case is damaged.• If water or any metallic objects falls into the product. • If the power supply cord is damaged in any way. • If the unit is malfunctioning.• Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's cover, as this may result in electric shock or fire.• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills into the unit, fire or electric shock may result.• Never operate this product or touch the power supply cord during an electrical storm, electric shock may result.• Never exceed the power rating on the product when connecting equipment. Fire and/or property damage may result.• Operate the product only with the voltage specified on the unit. Fire and/or electric shock may result if a higher voltage is used.• Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to heaters and do not place heavy objects on the power cord, including the product itself, doing so may result in fire or electrical shock.• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to a gas pipe as a catastrophic disaster may result.• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and causeinjury or property damage.When Installing The Product• Plugging in or unplugging the power cord with wet hands may result in electric shock.• Never move the unit with the power cord plugged into the wall, as damage to the power cord may result. • When unplugging the cord from the wall, grasp the plug, NOT the cord.• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or steam are present. Fire and electric shock may result.• Keep all sides of the unit at least 31⁄2" away from objects that may obstruct air flow to prevent the unit's internal temperature rise.When The Product Is In Use• Never place heavy objects on the product, causing it to fall and/or break, resulting in personal injury and property damage. In addition, the product itself may fall and cause injury and property damage.• Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat buildup and fire.• Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to accumulate on the power plug or inside the wall outlet.•When cleaning the unit or the unit is not to be operated for an extended period, unplug the power cord from the wall.CAUTION WARNING CAUTIONSpecifications are subject to change without notice.PA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435IntroductionCongratulations and thank you for purchasing the Atlas Sound PA40G/PA60G commercial amplifier. This new and innovativeprofessional grade product has been designed from the ground up to include the important features that professional installationpersonnel require to meet or exceed their customer’s expectations. Small and compact, and engineered for reliability, the Atlas Sound PA40G/PA60G will provide years of service and flexibility in today’s background music and paging applications.Key Features• PA40G - 40W into 70.7V/100V • PA60G - 60W into 70.7V/100V • 1 Balanced Line Input• 1 Unbalanced, Summing Line Level Input • Global Power Supply, 100VAC-240VAC ~ 50/60Hz • Optional Level Control Security Cover• Optional Rack Mount KitApplicationsThe Atlas Sound PA40G and PA60G are the perfect choice for distributed business paging, background music (BGM) systems, and small to medium speech privacy systems.– 6 –PA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Front PanelThis LED illuminates when the AC Mains is plugged in.2. Limit IndicatorThe LIMIT LED will illuminate when the PA40G/PA60G is in a clipping condition, caused by excessively high input levels or a GAIN control is turned up too high. An occasional flash is OK. Check that the proper signal level is being fed into the inputs and/or turn the input gain down until the LED is no longer illuminated. Refer to Limit LED & Load Conditions for more information.3. Signal IndicatorWhen the signal LED illuminates, this indicates that input signals connected to the amplifier are capable of driving the PA40G/PA60G to full power.4. Input 1 GainInput 1 level control potentiometer varies the amplitude of the signal fed into the amplifier. Turn clockwise to increase and counter-clockwise to decrease the signal level.Right In100V - 240V 50Hz/60Hz 1ABalanced InputSummed InputsPA60G Front Silkscreen ArtworkSpeaker Out– 7 –Specifications are subject to change without notice.1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Rear Panel1. Balanced Line InputBalanced line level signals connect to the (+), (–), and (G) terminals. If you are connecting an unbalanced line level input, tie (short) the (G) and (–) terminals together. If transformer isolation is required for Input 1, contact Atlas Sound for details. Note: The Balanced Line Input and the Unbalanced RCA Inputs are electrically isolated from each other and can be used at the same time.2. Unbalanced Stereo RCA InputInput 2 consists of stereo summing inputs, suitable for connection to the output of CD/DVD players, etc. Note: The Balanced Line Input and the Unbalanced RCA Inputs are electrically isolated from each other and can be used at the same time.3. 70.7V / 100V Speaker OutputFor loudspeaker connections, follow the labeling paying special attention to the polarity or proceed to the Limit LED & Load Considerations section. Note: Do not short the terminals together or damage may occur. It is recommended to use class 3 rated, 16-gauge wire or higher for speaker wiring.4. Global IEC AC Mains Power ReceptacleThe PA Models support global power sources from 100V-240V 50/60Hz. The package contains a cord that has an international IED connector to a 120V USA type plug. It may be necessary to replace the removable power cord to meet your AC Mains plug type used in your country. Note: It is not required to change the fuse for the different AC Mains voltages.Wiring the PA40G / PA60GSpeaker Outputs - Use 2 conductor unshielded wire of the appropriate gauge. If you are unsure about this, contact Atlas Sound Tech Support at 1-800-876-3333. Make sure you know how many speakers you need and what tap value you intend to use.It is recommended to use class 3 rated, 16-gauge wire or higher for speaker wiring.Balanced Line Input - 2 conductor with shield for low level signals of 20 - 22-gauge is best. Maintain the proper polarity, + to +, – to – , and shield to ground.Unbalanced Input - Pre-made RCA cables can be purchased from vendors to simplify interconnection to external devices.4123In order to prevent unauthorized operation of the PA40G & PA60G, optional security covers are available which take the place of the front panel knobs. After the PA amplifier has been installed and is operating as desired, grasp the front panel knobs and pull straight out from the front panel. Replace the knobs with security covers, Atlas Sound part number MPVCC-5, available in quantities of 5.Rack Mount Kit OptionsThe PA40G & PA60G can be rack mounted as a single unit or with two units together. To do so a PA702RMK Rack Mount Kit needs to be purchased from Atlas Sound.Limit LED and Load ConsiderationIf the Red Limit LED illuminates, the amplifier has sensed an improper load or the input signal is too high, triggering the protection circuitry. When the load sense Limit circuitry is engaged the amp will operate but at a lower power output. It is highly recommended to discontinue use immediately and correct the fault condition. If you continue to operate with the RED Limit LED on, the second stage of the current sense circuit may engage causing the amp not to pass any signal. To reset the amp turn down the Level controls and turn the power off for 10 seconds.In most situations when the Limit LED is in the illuminated steady state it means the speaker system load to the amp is lower than what the amp is rated. This usually is detected when the system is first set up. Below are a few load conditions to check for if the Limit LED is on.1. Connected to the wrong speaker terminal. Always check the speaker terminal to the type of load you are using. Example: If you are installing a 70V or 100V system make sure the wires are connected to the 70V/100V and common (COM) terminals.2. Too many speakers connected to the amp. This is a very common mistake. If you are using a 60W amp and using the 70V speaker terminals, add up the number of speakers and their wattage selections at the speaker. If they exceed 60W you must retap the speakers or remove the correct amount speaker wattage until the wattage is 60W or less. Example: If you are using a 30W tap you can only connect 2 speakers to the amp. If you are using the 7.5W tap, you can connect 8 speakers. If you have too many speakers on the amp it will load the amp down, causing excessive current demand and will trigger the Limit & Protect circuit.3. Wrong speaker tap selection. It is also common in a 70V or 100V system that one of the speakers are set too low of animpedance (8 ohm) and not a 70V or 100V tap. Note: It only takes one speaker to load the amp down incorrectly.4. Short in system. This is common if the wire is run in metal conduit and the wire got nicked during the wire pull.5. Speaker Level Controls. If an L-pad or stepped attenuator is wired wrong it can also load a system down.Front Panel KnobSecurity CoverFront Panel Knob Security Coveror– 9 –Specifications are subject to change without notice.PA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Measuring Speaker LoadsBelow is an Impedance load chart for the PA40G and PA60G. Measure the load impedance prior to connecting the load to theamplifier. The enclosed load chart will provide the information to determine if the load or speaker system impedance is too low for the amplifier’s rating. In every install it is always recommended to measure the load prior to turning the system on to be sure the system is installed correctly.Measuring a Speaker System’s ImpedanceNote: It is important to only use an Audio Impedance Meter and not a conventional Volt/Ohm meter. A true audio frequency impedance meter is essential for reliable installation of background music and paging systems in residences, office buildings and public areas. Avoid costly service calls and amplifier damage by verifying actual speaker system impedance prior to operation. Unlike conventional volt/ohm meters, which measure DC resistance, an Audio Impedance Meter unit utilizes an internal frequency oscillator to measure true impedance. It may also be utilized with 70.7V and 100V speaker line transformers, L-pads and matching impedance volume controls. There are several Audio Impedance meters on the market, if you need to buy one we suggest going to MCM Electronics, Parts Express or search the internet for “Audio Impedance Meter”.Measuring 70.7V or 100V Distributed Speaker SystemsLarge distributed systems typically utilize 70.7V (North America) or 100V (Europe) type system to greatly ease the connection of multiple speakers and facilitate long cable runs. Shown below are speakers connected in parallel with wattage ratings to calculate the overall load of the system. Connecting an Audio Impedance Meter to a speaker arrangement such as this will provide the overall impedance of the system.Using the following formula you can calculate the load impedance from the speaker selected wattage. The accumulative wattage of the speaker system must not exceed the maximum wattage output rating of the amplifier or damage may occur. In this example the measurement for a 70.7V design with three speakers of 15W each. The system impedance would measure close to 111Ω. Formula 70.7V x 70.7V = 4998, 4998 / 45W = 111Ω. The amplifier power requirements would be at least 60W for the system to operate properly. Note: It is always recommended to use a larger amp than needed with power headroom of at least 25%. Calculate the load impedance and compare it to the meter’s audio impedance reading. Note: They will never be the same due to the additional wire impedance, but if they are within 10% of the maximum impedance rating or if the impedance is higher than the maximum rating, proceed connecting the load to the amplifier. If they are not recheck your speaker taps or check for shorts.PA40G & PA60G Max Load ChartSpeaker Selection PA40G PA60G70.7V 125 Ohms 83 Ohms 100V 250 Ohms 166 OhmsPA40G / PA60GCommercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435SpecificationsTypeC ommercial AmplifierSafety Listings TUV UL60065 Standard, CE, Class 3 RatedElectrical SpecificationsPower Output PA40G: *********(125Ω), 40W @100V (250Ω) PA60G: *********(83Ω), 60W @ 100V (166Ω)Front Panel Indicators Power, Limit, Signal Controls Input 1 GainTechnical Data Frequency Response 50Hz - 20kHzThd+N .5% or Less @ 1kHz, Rated Output Sensitivity Line Input 500mv (600Ω)Inputs 2 / 3 RCA 500mv (10k Ω)Output Regulation Less Than 2dB, No Load To Full Load Signal To Noise Ratio Balanced Input = >55dBUnbalanced RCA Summed = >55dBPower Requirements Power Consumption PA40G: Idle: 0.075A, 8W, 27 BTU Average: 0.26A, 24W, 81 BTU Max: 0.8A, 71W, 242 BTU PA60G: Idle: 0.075A, 8W, 27 BTUAverage: 0.41A, 34W, 116 BTUMax: 1.25A, 102W, 348 BTUFuse PA40G: T630mA PA60G: T1AMechanical Dimensions 8.5" x 1.75" x 7.81" (216mm x 45mm x 198mm)Weight PA40G: Net Weight = 2.9lbs. (1.32kg), Shipping Weight = 3.1lbs. (1.4kg)PA60G: Net Weight = 2.9lbs. (1.32kg), Shipping Weight = 3.1lbs. (1.4kg)Note: Average power consumption is based on one third (1/3) of the maximum power rating, 50% duty cycle.PA40G / PA60GCommercial Amplifiers Notes:1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Specifications are subject to change without notice.PA40G / PA60G Commercial Amplifiers1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.Telephone: 800.876.3333 • Fax: 800.765.3435Limited WarrantyAll products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or commercial purchaser to be free from defects in material and workmanship and to be in compliance with our published specifications, if any. This warranty shall extend from the date of purchase for a period of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS SOUND brand products except as follows: one year on electronics and control systems; one year on replacement parts; and one year onMusician Series stands and related accessories. Additionally, fuses and lamps carry no warranty. Atlas Sound will solely at its discretion, replace at no charge or repair free of charge defective parts or products when the product has been applied and used in accordance with our published operation and installation instructions. We will not be responsible for defects caused by improper storage, misuse (including failure to provide reasonable and necessary maintenance), accident, abnormal atmospheres, water immersion, lightning discharge, or malfunctions when products have been modified or operated in excess of rated power, altered, serviced or installed in other than a workman like manner. The original sales invoice should be retained as evidence of purchase under the terms of this warranty. All warranty returns must comply with our returns policy set forth below. When products returned to Atlas Sound do not qualify for repair or replacement under our warranty, repairs may be performed at prevailing costs for material and labor unless there is included with the returned product(s) a written request for an estimate of repair costs before any nonwarranty work is performed. In the event of replacement or upon completion of repairs, return shipment will be made with the transportation charges collect.EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL DAMAGES FOR PERSONAL INJURY , ATLAS SOUND SHALL NOT BE LIABLE IN TORT OR CONTRACT FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTALLOSS OR DAMAGE ARISING OUT OF THE INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE.Atlas Sound does not assume, or does it authorize any other person to assume or extend on its behalf, any other warranty, obligation, or liability. This warranty gives you specific legal rights and you may have other rights which vary from state to state.ServiceShould your PA Series amplifier require service, please contact the Atlas Sound warranty department at1-877-689-8055, ext. 277 or to obtain an RA number.Atlas Sound Tech Support can be reached at 1-800-876-3333 or .Visit our website at to see other Atlas products.©2015 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P.All other trademarks are the property of their respective owners. ATS003582 RevE 2/15。

音乐厅 PA2.2 音频放大器说明书

music hall pa2.2INSTRUCTION MANUALmusic hallCONGRATULATIONS ON YOUR PURCHASEYou have selected an exceptional phono preamplifier. Each component used in the construction of the pa2.2 was selected to provide you with superior performance and the highest level of sound reproduction available today. We know of no phono preamplifier that costs as much to produce yet sells for so little. The precise and elegant design of this phono preamplifier makes it easy to install and operate. Please take a few moments to read over the operating instructions to ensure that you get the best performance from your preamplifier and years of trouble-free service.SAFETY GUIDELINESThis product is designed and manufactured to strict quality and safety standards. However, you should be aware of the following installation and operation precautions:1.Take heed of warnings and instructionsRead all the instructions before connecting or operating the preamplifier.Keep this manual so you can refer to these safety instructions.2.Water and MoistureTo reduce the risk of fire or electric shock, do not expose the phono preamplifier to moisture or water. If the phono preamplifier is exposed to moisture, immediately disconnect the power cord from the wall. Take the preamplifier to an authorized music hall service center for inspection. Do not touch the phono preamplifier, power cord, or plug with wet hands.3.Object or liquid entryDo not allow foreign objects or liquids into the unit. If this happens, immediately disconnect the power cord from the wall and take the unit to an authorized music hall service center for inspection.4.HeatKeep the phono preamplifier away from naked flames, radiators, heat registers, stoves, or any other heat-producing appliances (including amplifiers).5.ClimateThe phono preamplifier has been designed for use in moderate climates. Do not attempt to use below 41 degrees Fahrenheit (5 degrees Celsius) or above 95 degrees Fahrenheit (35 degrees Celsius).6.Racks and StandsPlace the phono preamplifier on a fixed, level surface strong enough to supportits weight. Do not place it on a moveable cart that could tip over. We recommend only using stands approved for use with audio equipment.7.CleaningA soft towel can be used.8.Power SourcesConnect the phono preamplifier only to a power supply of the type and voltage described in the operating instructions or specified on the rear panel of the unit.9.Power-cord protectionConnect the phono preamplifier to the power outlet only with the supplied power supply. Do not modify the supplied power supply in any way. Do not attempt to defeat grounding and/or polarization provisions.Do not use extension cords.Do not route the power cord where it will be crushed, pinched, bent at severe angles, exposed to heat, or damaged in any way.10.Non-use periodsIf the preamplifier is to be left unused for a long period of time, the power supply should be unplugged from the wall outlet.11.Damage Requiring ServiceStop using the phono preamplifier immediately and have it inspected by an authorized Music Hall service center whenever:1.The power supply cord or plug has been damaged.2.The phono preamplifier has been exposed to rain.3.The phono preamplifier does not operate properly.4.The phono preamplifier has been dropped or damaged.5.Smoke or any unusual smell is detected from the phono preamplifier. GETTING STARTEDThank you for purchasing the Music Hall pa2.2 usb phono preamplifier. This manual provides valuable information that will help you get optimum performance from your system. Please contact your authorized Music Hall dealer for any additional clarifications you may require. Save the shipping carton and all enclosed packing material for future use. Shipping or moving the pa2.2 in anything other than the original packing material may result in severe damage that is not covered by the warranty. Be sure to keep the original sales receipt; it is your best record of the date of purchase, which you will need in the event warranty service is required.SET-UPThe pa2.2 may be used in either MM (moving magnet) or MC (moving coil) mode according to the construction principle of the phono cartridge to be used. Before setting the mm/mc switch, the unit must be disconnected from the power supplyobtained with the 20dB gain setting.k panelnt panton 7555c FRONT PANEL A REAR PANEL ARTConnecting the TurntableConnect the turntable signal lead to either the mm or mc input on the pa2.2 depending on the type of cartridge your using. Take care to connect the left and right channels correctly. The right channel is marked with red the left channel is market with white. The ground wire of the turntable lead should be connected to the ground screw.Connecting a Line InputYou can connect any standard line output component (cd player, tape deck, tuner, etc.) to the line in input . This will allow you to listen to a standard line signal through the pa2.2 or convert the analog line signal to a digital signal via the usb out for recording on a computer. To listen to the output of the line in the phono/line switch on the front panel must be switched to line.Connection to the AmplifierLocate the line out connectors on back of the pa2.2. You have a choice between variable or fixed output. The variable output will allow you to adjust the volume level of the output with the volume control on the front panel. Please note: the volume control also controls the volume of the headphone output.Connect the line out (fixed or variable) of the pa2.2 to a line input (i.e. AUX, CD, TUNER, etc.) on your amplifier. Take care to connect the left and right channels correctly. Make all connections while the phono box is disconnected from the power supply.*DO NOT CONNECT THE PA2.2 TO A PHONO INPUT.*Mains ConnectionThe pa2.2 is supplied with a high efficiency multi-region regulated power supply. It provides a stable output from any mains voltage from 100 – 240V. Connect the low voltage plug from the power supply to the dc 24V socket on the pa2.2 before connecting to the mains. You may need to snap on a different power plug adaptor for your country. Plug-in and enjoy.Connecting to a ComputerConnect to your Windows PC or Apple Mac computer via the usb out on back of the pa2.2. A usb-B (pa2.2 end) to usb-A (computer end) cable is required for this connection. Connect the pa2.2 to your computer when both products are powered on. Your computer will recognize the pa2.2 and download any necessary drivers.You can select the pa2.2 on a Windows PC under Start > Settings > Sound Apple Mac computer under System Preferences > Sound > InputFor recording to your computer with the pa2.2 we recommend the use of Audacity freeware. The Audacity recorder and audio editor for your computer can be downloaded and set-up at: .Help, FAQ, and Tutorials can also be found on their site.Front Panel Controlson/offUse this switch to power the unit on and off.stereo/monoSwitch between stereo or mono audio output. The sound of mono records is significantly improved by toggling this switch to mono.phase/invertSwitches the output signal between absolute polarity phase (0°) and reversed polarity invert (180°). The majority of recordings are in phase, but some are recorded inverted phase or out-of-phase. The music will sound more full and rich when matched to the correct phase.phono/lineSwitches the audio output between phono and line inputs.headphones¼’ output for headphones.volumeTurn to adjust the headphones and variable output volume level.TECHNICAL SPECIFICATIONS:•MM input impedance: 47 kohms+ 220 pF•MC input impedance: 100 ohms + 1 pF•Analog line-level input impedance: 47 kohms•MM gain at 1khz: 39 dB•MC gain at 1khz: 59 dB (20 dB gain selected) / 65 dB (26 dB gain selected)•MM input sensitivity for 316 mV output: 3.3 mV•MC input sensitivity for 316 mV output: 0.4 mV (20 dB gain selected) / 0.2 mV (26 dB gain selected)•MM signal-to-noise ratio unweighted (with cartridge connected): 70 dB•MC signal-to-noise ratio unweighted (with cartridge connected): 75 dB (20 dB gain) / 70 dB (26 dB gain)•Analog Line-level input Signal-to-noise ratio: 120 dB•MM Input overload level at 20Hz/1kHz/20kHz: 8/71/650 mV•MC Input overload level at 20Hz/1kHz/20kHz (20 dB gain selected): 0.95/48/450 mV •MC Input overload level at 20Hz/1kHz/20kHz (26 dB gain selected): 0.45/24/225 mV •MM Total Harmonic Distortion + Noise (10 mV in): <0.01%•MC Total Harmonic Distortion + Noise (1 mV in and 20 dB gain selected): <0.05% •MC Total Harmonic Distortion + Noise (1 mV in and 26 dB gain selected): <0.05% •Analogue line-level input total harmonic distortion + noise: <0.01%•RIAA curve accuracy: +/- 0.3 dB•MM Crosstalk: 65 dB•MC Crosstalk: 65 dB (20 dB gain) / 60 dB (26 dB gain)•Line-level input crosstalk: 63 dB•Fixed line-level output impedance: 270 ohms•Variable line-level output impedance: 270 ohms•Headphone stage output impedance: 2 ohms•Headphone stage maximum output level: 6.8 V•Headphone stage total harmonic distortion + noise: <0.02%•USB output: maximum 24 bit linear PCM•USB output sampling frequency: maximum 96 kHz•Power Supply Rejection Ratio: 80 dB•Power supply: external 24VDC with multi-region plug adaptors•Power consumption without signal: 2.9 W•Unit dimensions (W x H x D): 6.3 x 2.0 x 6.73 in. (159 x 51 x 171 mm)•Unit weight: 2lbs. (900g)Input Connections: 3 pairs of RCA sockets (left/right) 1 x MM, 1 x MC, 1 x LineOutput Connections: 2 pair of RCA sockets (left/right) 1 x variable, 1x fixed1 x headphone output 32 - 600ΩA/D Converter: Wolfson WM 8786, Tenor TE7022L 24Bit Delta SigmaSampling Rates: 8, 16, 32, 44.1, 48, 96kHzUSB Output: USB 2.0,fully backward-compatible with USB 1.1Operating Systems: Windows: WinXP/Win7/Win8/Win10MAC: Mac OSX10.6.6 ~ OSX10.11music hall reserves the right to make technical modificationsTROUBLESHOOTINGMusic Hall phono preamplifiers are manufactured to the highest standards and undergo strict quality controls before leaving the factory. If, for some reason your phono preamplifier is not working properly, please take a few moments to review this list of potential causes.NO SIGNAL IN ONE OR BOTH CHANNELS:•The phono preamplifier is not connected to the mains power supply.•No mains at the socket.•No connection between the phono preamplifier and amplifier.•Correct input not selected at amplifier.•Poor contact or broken connection between the amplifier or turnable.•Amplifier not switched on.•Amplifier or speakers defective or muted.•Cartridge not wired into the head shell.•Loudspeakers not connected.•The correct input line or phono is not selected for the source that’s playing.•The turntable is not connected to the selected input mm or mc.LOUD HUM ON PHONO INPUT:•No earth connection from cartridge, tonearm, or audio cable to amplifier.•Ground loop.•Phono preamplifier too close to one or both speakers.DISTORTED SOUND FROM ONE OR BOTH CHANNELS:•MM/MC switch on pa2.2 incorrectly set.•Dust on the stylus.•Needle or cantilever damaged..SERVICEShould you encounter a problem that you cannot solve, please contact your Music Hall dealer. Never return a phono preamplifier without authorization and without safely disconnecting it and correctly packing it in the original packaging. Repairs will only be made under warranty if the unit is returned correctly packaged in its original box.WARRANTYThis entitles you to have the Music Hall pa2.2 repaired free of charge, at our discretion, for one year after the date of purchase, at any authorized Music Hall service center, provided the unit was purchased from an authorized dealer. Your original sales receipt is proof of purchase date. Music Hall takes no responsibility for defects arising from accident, misuse, abuse, wear and tear, neglect or unauthorized repair and/or adjustment. Music Hall cannot accept responsibilityfor damage or loss that occurs during transit. The warranty does not cover transportation costs.CLAIMS UNDER WARRANTYThe pa2.2 should be packed in the original packing and returned to the dealer from whom it was purchased, or, upon authorization, to a Music Hall service center. It should be sent by a reputable carrier, carriage prepaid. Do not send the phono preamplifier via USPS (United States Postal Service). Since no responsibility will be accepted for a unit in transit to the dealer, customer, or authorized service agent, customers are advised to insure against loss, damage, or theft.FOR FURTHER INFORMATION CONTACT:Music Hall108 Station RoadGreat Neck, NY 11023Tel: 516-487-3663Fax: 516-773-3891。

Rockford Fosgate PA-1HD和PA-1多用途预放器说明书

PA-1HD and PA-1 PreamplifiersDear Customer:Congratulations on your purchase of America’s finest car audio components. At Rockford Fosgate we are committed to musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures we have produced a wide range of products that reproduce music with all the clarity and richness you deserve.For maximum performance we recommend you have your new Rockford Fosgate product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized training through Rockford Technical Training Institute (RTTI). The length and nature of your warranty are dramatically affected if you install the product yourself. Please read your warranty and return your receipt and original carton for possible future use.For your musical enjoyment, Rockford Fosgate offers everything from two channel Punch® amplifiers, the more powerful four channel Power amplifiers, to three lines of speakers: Pro Series, The Punch®, and Series One™, In addition, we offer two-, three- and four-way speaker systems, and subwoofer and full range enclosures. For sound reproduc-tion at its best, we offer signal processors: equalizers, pre-amps, and crossovers.To insure overall installation quality, Rockford provides top quality wire, connectors, carpet, grille cloth, “Colours” speaker grilles and amplifier shrouds, high output alterna-tors, and many more accessories through our Perfect Interface division.To add the finishing touch to your new Rockford Fosgate image, order your Rockford P.0.P which includes everything from t-shirts and jackets, to key chains and neon hats.To get a free brochure on Rockford Fosgate products and Rockford P.O.P., please call 602-967-3565 or FAX 602-967-8132.And Remember.. .PRACTICE SAFE SOUND™CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER 100dB MAY CAUSE PERMANENT HEARING LOSS. HIGH-POWEREDAUTOSOUND SYSTEMS MAY PRODUCE SOUND PRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSE AND PRACTICE SAFE SOUND.INTRODUCTIONThe Rockford Fosgate PA-l HD / PA-1 is an automotive stereopre-amplifier which will provide state-of-the-art sound in cars,vans, boats, or wherever a 9 to 16 volt battery is available.The Punch® adjustable input circuits are designed to matchalmost any music source, from low preamp levels to speakerlevels, with negligible noise.Three rotary potentiometers control bass, midbass, and trebleequalization circuits specially designed to compensate for theresponse errors present in most mobile installations.Unlike conventional tone controls, the Punch®equalization cor-rects the specific problems of poor low bass response, mid-bassbulge, and high frequency rolloff. The result is full-range soundwithout excessive boost in areas where it is not needed.FEATURES DESCRIPTION (PA-1 HD pictured)1 2 34 56 7 8 9 10 11 12 13 14 15 16 17 18Volume ControlFront to rear fader, along with a non-faded output. Bass equalizer designed to compensate for the special acoustic problems of automobilesL.E.D. lights (differs slightly on PA-l)Midbass equalizer designed to address the mid bass bulge common to most carsTreble control to set the desired level of brilliance Input:-1: Tape-2: CDCD switchable input gainTape switchable gainClipping indicators adjustable gainCD inputsTape InputsNon-faded OutputsRear OutputsFront OutputsPower Connection (White Wire)Ground Connection (Black Wire)Turn-on Connection (Red Wire)Adjustable gains for optimum signal to noise ratio. Full floating supply for superior noise ratio. Handcrafted in U.S.A.117183INPUT LEVEL CONTROLSThe PA-l HD / PA-1 input level controls are accessible with ajeweler’s screwdriver through four holes in the cover (left andright tape [#9] and left and right compact disc [#8]). The controlsare factory preset to a level which matches most 500 millivolt to1 Volt rated preamp-output source units.If you are using the speaker-out leads of the source unit, turn thePA-l HD / PA-l input controls fully counterclockwise to theirminimum gain position.If the volume control of the source is “touchy” and/or noisy-thatis, if just a little volume from the source drives the system intodistortion-reduce the PA-l HD/ PA-l input g ain controls so thatthe distortion is not audible until the source volume is at about3/4 of its rotation.If maximum volume from the source won’t drive the amplifierinto distortion, increase the PA-l HD / PA-l input gain controlsuntil distortion is audible at about 3/4volume. CLIPPING LEVEL INDICATORSThe PA-l HD / PA-l clipping level indicator [#10] controls areaccessible with a jeweler’s screwdriver through a hole in thecover. The controls are factory preset to a level which matchesmost 400 millivolt input amplifiers.The best way to adjust the clipping indicators is to hook anoscilloscope to the output of the amplifier and turn the pot untilthe clipping lights (the two outside red lights) just flash when theamplifier starts to clip. Without an oscilloscope, adjust thecontrols so that the clipping indicators flash before clippingbecomes audible.TURN-ON CONNECTION(RED WIRE)The PA-l HD / PA-l is turned on by applying Positive 12 Voltsto the red wire [#18]. Usually, the red wire is connected to thesource unit’s “Accessory” or “Auto-Antenna” lead, either ofwhich will go positive when the source is turned on.Although the majoriiy of high-quality automotive source unitshave an Accessory or Auto-Antenna output, there are manywhich may require different turn-on methods. If the source hasno Auto-Antenna lead (or if Auto-Antenna goes down duringtape operation):a.)Find the internal switched power voltage inside the sourceunit and solder a lead to it. Run the lead out through theback of the unit (being sure to use a grommet for insulationfrom the case) and connect to the pre-amplifier turn-onwire.b)Or: install a switch in the car with one terminal connectedto +12 volts and the other to the PA-1 HD / PA-1 red lead.c)Or: Connect the PA-1 HD/ PA-l red lead to accessory pointat the vehicle’s fuse block. In this case the pre-amplifier willbe on wheneverthe vehicle is on. This method will allow thesystem to amplify any noise and turn-on and turn-off trans-ients, and may therefore be unsatisfactory.POWER CONNECTION(WHITE WIRE)The White wire [#16] must be connected directly to a positiveterminal of the battery or to the fuse block to provide a powersource with a low voltage drop and low noise. If the power wiremust be extended, use only 18-gauge or larger wire and makea good splice.It is best to use as short a wire run as possible. DO NOT run thepower wire next to the input cabling to the pre-amplifier: it willinduce noise.Avoid running the White power wire near the radio’s antenna orpower leads, or near sensitive equipment or harnesses. TheWhite power wire could induce noise.The White wire is provided with an in-line 3/4 ampere fuse. Donot use a larger fuse or the pre-amplifier will not be adequatelyprotected.GROUND CONNECTION(BLACK WIRE)The ground wire [#17] must be connected directly to the vehiclechassis, near the pre-amplifier. Ground loops are aggravatedby the length of the ground wire or any resistance in the groundpath. For this reason we do not recommend extending theground wire in any installation.The ground point in the car should be a piece of chassis metalthat is welded to the main body of the vehicle. Painted surfacesshould be scraped or sanded clean before the ground lug isbolted down. (Cover the bare-metal area with paint or grease toprevent rust .)6SPECIFICATIONSNOISE:Signal to nose less than -9OdB.DISTORTION:Less than 0.01% THD+N(Total Harmonic Distortion & Noise).PREAMP FREQUENCY RESPONSE:All controls flat: 20Hz to 10,000 Hz ±.5dBEQUALIZER CONTROLS:Bass Equalizer: ±l2dB at 45HzMidbass:±l2dB at 180HzTreble: ±12dB at 20,000HzCURRENT DRAW:250 milli-Amperes.DIMENSIONS: PA-1 HD6.850” x 3.6” x 1”174mm x 91.4mm x 25.4mmDIMENSIONS: PA-16.75” x 3.5” x 1.5”171.4mm x 88.9mm x 38.1mmNOTE: Specifications subject to change without notice.ROCKFORD FOSGATELIMITED ELECTRONICS WARRANTYRockford Fosgate warrants all electronics to the original retail purchaser only, to be free from defects in materials or workmanship for a period of two (2) years parts and one (1) year labor providing the product was purchased from and installed by an authorized Rockford Fosgate dealer. Warranty on products purchased from, but not installed by an authorized dealer is one (1) year parts, no labor. This warranty is not transferable. Electronics found to be defective during the warranty period will be repaired or replaced at Rockford Fosgate’s discretion. Repaired or replaced electronics will cover the balance of the original warranty period only.Defective product must be shipped prepaid, together with proof of purchase and installation with a brief description of the problem, to the Rockford Fosgate Dealer from whom you purchased the product or to the factory in Tempe, Arizona in the original factory canon or equivalent. Any shipping loss or damage will be borne by you. If you return your product to the factory, please call 602-967-3565, ext. 3081 for a return authorization number. If, upon inspection at either the Dealership or the factory, a determination is made that the product has failed due to materials or workmanship we will repair or replace it at no charge, and return it in a reasonable length of time. If a determination is made that the product has been abused or is out of the warranty period, it will be repaired and returned C.O.D. for the repair and freight. Warranty does not cover the cabinet or any appearance item, any cost or expense related to the removal or reinstallation of the product, any accessory used in conjunction with the product, or any damage to the product resulting from alteration, accident, misuse or abuse. This warranty does not apply if the parts or labor, which would otherwise by provided without charge under this warranty, are obtained from any other source than Rockford Fosgate or an Authorized Rockford Fosgate service center. Rockford Fosgate limits obligation under any implied warranties under state laws to a period not to exceed the warranty period. This warranty applies only to products sold in the United States of America, or its posses-sions. For warranty outside the U.S.A., please contact your local agent. This warranty will terminate if the serial number has been removed, tampered with, or defaced. This product has no factory warranty if purchased from any other than an Authorized Rockford Fosgate Dealer.Ship to:Rockford CorporationWarranty Repair Dept.2055 E. 5th St.Tempe, Arizona 85281 U.S.A9Rockford FosgateA Division of Rockford Corporation641 South Rockford Drive Tempe, Arizona 85281 U.S.A.602 - 967 - 3565。

DSPPA广播系统说明书

【（1）、投标综合说明】 DSPPA 公共广播系统设备
公共广播系统一、概述
DSPP A公共广播系统器材性能介二、绍
厂区的公共广播/背景音乐示三、意
厂区的公共广播/背景音乐示四、意
公共广播系统一、概述
DSP PA
Public Address System
性能规格：
额定输出功率
输入灵敏度频响
冷却方式电源尺寸
保护净重
警报信号输入
警报信号输出
AP-9815E
特点：
AP-3500 1500W
1.2V 50Hz-15KHz-3d
强迫风冷 AC220-240V/50～15KHZ
88*482*330mm 上电、高温、直流、短路
45Kg
DSP PA
要，即使广播服务区是写字楼，也不应把本底噪声估计得太低。椐此，作为一般考虑，除了繁华热闹的场所，不妨大致把本底噪声视为65~70dB（特殊情况除外）。照此推算，广播覆盖区的声压级宜在80~85dB以上。
鉴于广播扬声器通常是分散配置的，所以广播覆盖区的声压级可以近似地认为是单个广播扬声器的贡献。根据有关的电声学理论，扬声器覆盖区的声压级SPL同扬声器的灵敏度级LM、馈给扬声器的电功率P、听音点与扬声器的距离r等有如下关系：
这里所说的公共广播是指有线传输的声音广播，通常用于工厂、公共场馆、大厦、小区内部，供背景音乐广播、寻呼广播以及强行插入的灾害性广播使用。这一类公共广播工程的设计，通常按下列顺序进行： 1、首先应考虑广播扬声器的选用、配置 2、广播功放的选用 3、广播分区
2、广播扬声器的选用和配置

PA1011功率放大器用户手册

VI
PA1000 系列功率放大器用户手册
快速入门
RIGOL
第1章快速入门
本章介绍 PA1011 功率放大器的前后面板和用户界面，以及首次使用仪器时的准备工作。
一般性检查
当您得到一套新的 PA1011 功率放大器，请按以下步骤进行检查。
1．检查是否存在因运输造成的损坏请保留被损坏的货运包装或防震材料，直到货物经过完全检查且仪器通过电性和机械测试。如果因运输造成仪器损坏，请通知运输部门和负责此业务的 RIGOL经销商，RIGOL会安排维修或更换。
状态指示灯
Power：红灯亮，表示电源连接成功。 Output：绿灯亮，表示输出开关已打开。 Link：黄灯亮，表示USB连接成功。
1-2
PA1000 系列功率放大器用户手册
快速入门
后面板
USB Device 电源输入端口
风扇散热孔
RIGOL
图 1-2 PA1011 后面板视图
1. 电源输入端口请使用附件提供的电源线连接该端口，电源输入为 12V，4A 的信号。
2. 连接仪器电源请使用附件提供的电源线连接仪器并给仪器上电。
3. USB 连接及驱动安装请使用附件提供的 USB 数据线，将仪器与计算机进行通信连接。首次将仪器成功连接到计算机后，计算机画面会弹出硬件安装向导对话框，如下图所示：
PA1000 系列功率放大器用户手册
1-5
RIGOL
快速入门
! 注意
请勿使用其它输出类型的适配器给 PA1011 供电，否则会造成仪器性能下降或永久性损坏。
2. USB Device 通过 USB 数据线将 PA1011 与计算机相连。
! 注意
在操作 PA1011 时，请确认没有遮挡物遮住 PA1011 侧面的通风孔和后面板的风扇散热孔，以免影响其正常工作。

PA纯后级广播功放说明书

P A纯后级广播功放说明书集团标准化办公室：[VV986T-J682P28-JP266L8-68PNN]OWNER’S MANUALBefore operating, please read this manual completely.PA3002PA4002PA5002Public AddressAmplifiersFEATURESTransformer isolated 100V, 70V and 4 Ohms speaker outputs.5 LED indicator for status display.XLR socket and mm jack for link convenient.Output circuit shorting protection & display.Series amplifiers of high output power available.AMPLIFIER FRONT VIEW1. AC power switch (1 is power on andthe “power LED ” is on )2. POWER LED indicator3. CLIP LED indicator (Please reduce4. the gain to prevent severelyclippedwaveforms reaching the loudspeakers)5. SIGNAL LED indicator(Output level) 6. PROT LED indicator (DC oroutput circuit shorted indicator) 7. TEMP LED indicator (high temperature indicator) 8. Volume (input attenuator) 9. Unit’s fan exhaust windowAMPLIFIER REAR VIEW and CONNECTIONS1. fan intake window2. COM. output3. 4～16 output4. 70V output5. 100V output6.220V AC fuse7. XLR input 8. socket input 9. socket link 10. XLR link11. 220VAC power cordOPERATING PRECAUTIONS1 2 3 4 5 6 7 8Make sure the AC main voltage is correct and is the same as that printed on the rear of the amplifier. Damage caused by connecting the amplifier to improper AC voltage is not covered by the three-year US warranty.Make sure the power switch is off before making any input or output connections. It is always a good idea to have the gain controls turned down during power-up to prevent speaker damage if there is a high signal level at the inputs.CONNECTING INPUTSInput connections are made via either the 3-pin XLR -type connectors (Figure 1) or mm sockets on the rear side of the amplifier.CONNECTING OUTPUTSLoad can be connected using banana plugs or spade lugs. A black binding post is considered “COM”, while the three red binding posts are considered “hot”, and the voltage is 38V （different from the model ）, 70V , and 100V .Note:Never connect the “hot ”terminals together.When connecting load （speakers ）, it is better to use one pair of output terminals only.If the PROT Led goes on steadily while power has been turned on and signal has been fed, there must be a trouble of output shorted. Please turn the unit off and correct the trouble then turn it on again.Figure 1 3-pin XLR-typeconnectorsSPECIFICATIONSHTTP:/ DSPPA ACOUSTIC TECHNOLOGY CO., LTD.使用说明欢迎惠顾。

功放机按键说明书

功放机按键说明书篇一：音响操作说明音响操作说明针对于本系统，具体操作如下： 1. 话筒及音乐输入连接：调音台可以接入有线话筒、无线话筒、DVD、电脑音频等；有可种可以接入的插口，方便进行连接（如下图所示）。

第1路到第8路一般接入话筒，第13到16路为DVD等音乐信号输入；第9路到第12路比较特殊，即可以接入话筒，也可以接入DVD等音乐信号（已经标明L、R声道），只是接口不一样而已。

注：1、如果上面的卡侬口已经接入设备，就不要再用下面的单插插口，也就是说，这一路里面只可以接入一路音源；下面的INSERT插口，本系统用不到。

2、如果要接入普通的会议话筒，可能需要48V供电，那么本调音台具备此功能，只需要把调音台的48V供电开关打开即可，如下图所示；2. 开启系统：先打开第一台电源时序器，电源时序器会依次给所接设备供电；等第一台电源时序器的8路电源依次打开完毕，再打开第二台电源时序器，同样，等8路电源全部打开方可进行其他操作。

注：专业音响设备具有开关顺序，开启时顺序为：音源设备（如DVD、话筒接收机等）、周边设备（如调音台、均衡器、效果器等）、功放。

否则的话，可能会产生“嘭”的声响，以至于损坏设备。

3. 播放音频、视频：首先把调音台右下角总音量的推子调整到合适的位置（如图一所示），高度最好不要超过0刻度；然后打开DVD 机，把光盘放入，让DVD处于读碟播放状态；找到调音台对应DVD接入的那一路，把方块透明的开关按钮按下，使其处于点亮状态，再按下下方的红色ST按钮；然后轻轻从下方往上推长方形的音量推子，直到音量足够为止（如图二所示）。

高中低音调整：正常情况下，无需调整音乐音频，因为DVD或电脑放出来的都是原始音频，如果想调整音乐的高中低音，可以通过调音台自带的简单均衡器进行调整（如图三所示），上面的为高音旋钮，中间的为中高频旋钮，下面的为低音旋钮。

音视频矩阵切换：如把第1路音频、视频切换到第2路输出，那么操作方法是：按AV键然后从右侧上边的一排（输入键）按下1键，然后再从下面一排（输出键）按下2键，最后再按下ENTER 键即可。

操作说明书PA放大器A-1706A-1712A-1724

18．辅助输入端子[AUX 5] -20dB,10kΩ,非平衡式。合并的 XLR（母形） /耳机插孔连接器，连接外围设备的信号输出。
19．辅助输入端子[AUX 3，4] -20dB,10kΩ,非平衡式。非立体声 RCA 接触插孔。连接外围设备的信号输出。
此图示为 A-1724。
20．话筒/辅助输入端子
6．低音音质调节器调节广播音质的低音。以中央位置为基准，顺时针旋转，低音增强；反时针旋转，低音衰减。
7．高音音质调节器调节广播音质的高音。以中央位置为基准，顺时针旋转，高音增强；反时针旋转，高音衰减。
8．分区指示灯指示灯亮表示用分区选择器开关选择的广播分区（分区 1，2）。
9．分区选择器开关选择所需广播区域。按下 ZONE 1 和 2 开关，ZONE 1 和 2 输出终端（14）分别输出信号。
PA 放大器
操作说明书
A-1706 A-1712 A-1724
此次承蒙您选购 TOA PA 放大器，谨致谢意。为了使您有正确的使用方式，请务必详读此操作说明书，并长期使用我们的产品。
目录
安全须知 .................................................... 3 概要 ......................................................... 4 特点 ......................................................... 4 各部名称及功能
附件 ...................................................... 11 选购产品 .................................................. 11

PA-920 93511 电源音频放大器操作手册说明书

OPERATING MANUALPA-920/935Although it is neither complicated to install nor difficult to operate your amplifier, a few minutes of your time is required to read this manual for properly wired installation and becoming familiar with its many features and how to use them.Please take a great care in unpacking your set and do not discard the carton and other packing materials. They may be needed when moving your set and are required if it ever becomes necessary to return your set for services. Never place the unit near radiator, in front of heating vents, to direct sun light, inexcessive humid or dusty location to avoid early damage and for your years of quality use. Connect your complementary components as illustrated in the following page.•VERSATILE AND CONVENIENT3 channels of input signals from MIC1, MIC2/AUX1 and MIC3/AUX2 are provided, and Bass and T reble are incorporated for versatile and convenient use. MIC, AUX input have PL55 phone jack and T elephone IN input have screw terminal.1.POWER SWITCHPressing this switch to ON will make the power indication LED ON and supply the power to this unit.2.POWER LEDPressing power switch to ON will make the power indication LED ON.3.TREBLEThis control is used for modifying the high frequency sound.4.BASSThis control is used for modifying the low frequency sound.5.MIC VOLUMEY ou can adjust the volume level of Mic 1, Mic 2, and Mic 3.6.AUX VOLUMEY ou can adjust the volume level of Aux 1 and Aux 2.7.MASTER VOLUMEThis control is used for adjusting the volume of finally mixed sound.1.AC CORDPlug this AC input cord into AC outlet.2.FUSE HOLDER (AC)This fuse holder contain AC fuse, replace only with same type fuse when it is blown out. If it continuously blow, stop replacing fuse and refer servicing to qualified personnel.Voltage AC 220V/240VPA-920 Fuse Rating0.5A/250VPA-935 Fuse Rating1A/250V3.SPEAKER OUTPUT TERMINALThis terminal is for speaker wire connection. Y ou can select one of 4 ohms, 8 ohms, 70 volts and 100 volts.Be sure not to make the total impedance less than rated impedance.4.GND TERMINALThis is ground terminal to be connected with chassis of the turntable etc, to reduce hum to minimum. T o further minimize hum, it may be necessary to connect this terminal with a wire to the nearest water pipe which goes directly to real ground.5.MIC 1, 2, 3 INPUT (PHONE JACK)These phone jacks are for the Mic 1 and Mic 2 input. Input sensitivity and impedance in PHONE JACK 2mV/600Ω.6.MUTE CONTROLWhen the other signal is muted by Mic 1 and T elephone paging, this control is used for adjusting the muting level.7.MIC 2/AUX 1 SELECTOR SWITCHThis switch is used to select MIC 2 or AUX 1.8.MIC 3/AUX 2 SELECTOR SWITCHThis switch is used to select MIC 3 or AUX 2.9.TELEPHONE IN TERMINALThese terminals are to be connected to telephone exchange system for paging.NOTE: When there are paging signal through this terminals, the other input signals are muted.10.AUX INPUT (PHONE JACK)Y ou can connect the sound source of tuner, deck, CD, video, etc to this input.When you connect the speaker, remove the power cord from AC outlet. And use the suitable terminals connecting way as belows. Be sure that total impedance is not less than rated impedance.• AC VOLTAGE: 220V–240V ONL YVOL T AGE P A-9208.9V12.65V70V100V P A-93511.8V16.73V70V100VIMPEDANCE P A-920 4 OHMS8 OHMS245 OHMS500 OHMS P A-935 4 OHMS8 OHMS140 OHMS285 OHMSELECTRICAL• Rated Output Power (at THD: 10%)................................................................................................20W (RMS)4Ω/8.9V, 8Ω/12.8V, 245Ω/70V, 500Ω/100V • Frequency Response...............................................................................................................150Hz to 15KHz •T otal Harmonic Distortion..........................................................................................................Less than 0.5%• T one Control Effect...................................................................................................................................±10dB •Signal to Noise Ratio..............................................................................................................Better than 60dB •Input Sensitivity/Impedance..............................................................................................Mic Input 2mV/600ΩAux Input 150mV/1KΩT elephone Input 0.775V/600ΩGENERAL• Power Source............................................................................................................................AC 220V–240V • Weight......................................................................................................................................................3.5 Kg • Dimensions..........................................................................................................290(W)76(H)196(D) mmPA-920ELECTRICAL• Rated Output Power (at THD: 5%)..................................................................................................35W (RMS)4Ω/11.8V, 8Ω/16.7V, 140Ω/70V, 285Ω/100V • Frequency Response...............................................................................................................150Hz to 15KHz •T otal Harmonic Distortion..........................................................................................................Less than 0.5%• T one Control Effect...................................................................................................................................±10dB •Signal to Noise Ratio..............................................................................................................Better than 60dB •Input Sensitivity/Impedance..............................................................................................Mic Input 2mV/600ΩAux Input 150mV/1KΩT elephone Input 0.775V/600ΩGENERAL• Power Source............................................................................................................................AC 220V–240V • Weight......................................................................................................................................................4.4 Kg • Dimensions..........................................................................................................290(W)76(H)196(D) mm *Specifications and design subject to change without notice for improvements.PA-935MADE IN KOREA NO: 9007931102A。

功放机说明书

功放机说明书篇一：功放的说明书说明书一、面板布置：1、本功放由功放、播放器、电平指示器、扬声器四个模块组成。

其中功放有放大音频信号的功能，可把播放器音频、外接音频、话筒音频信号放大，通过调节旋钮可改变信号的大小。

播放器有读取内存卡里的音频文件并转化成音频信号（另有收音机功能）的功能。

电平指示模块是通过计算音频信号，获取音频里音调的高低信号，再通过led灯显示出来，具有装饰的功能。

扬声器是把音频信号转化成声音信号的作用。

2、正前方：电平指示 1314⑥⑦⑧⑨⑩11 12①②③④⑤左声道右声道①电源指示灯、②音频输入、③音量旋钮、④话筒音量旋钮、⑤话筒输入、⑥播放器电源开关、⑦上一曲/音量-、⑧播放/暂停、⑨下一曲/音量+、⑩播放模式、11数据线插孔、12 usb插孔、13播放器显示屏、14 sd卡插孔（注：11、12、14插孔都是输入插孔，不能输出）3、正后方：变压器变压器线散热器遥控器电源线耳机插孔扬声器插头注意：1、使用前检查电源线和变压器线是否完好，外层绝缘皮是否有破损，若有破损则需要用电胶布粘住，防止皮肤接触而触电。

2、通电时最好不要触碰变压器和变压线。

3、使用时禁止触碰散热器、变压器，防止因温度过高而烫伤。

4、当使用耳机听音频时，只需把耳机插入耳机插孔，但要注意，在使用耳机之前要控制好音量，防止音量过大而损坏耳机。

一般操作是先把音量调为最小，插入耳机后再慢慢增大。

二、使用步骤：1、打开电源：在打开电源前先把音乐音量，话筒音量④调为最小，并确定自带播放器开关⑥处于关闭状态。

然后把电源线接电，则电源指示灯会亮①。

2、接音频：音频有两种，一种是外接音频输入②，另外一种是自带播放器输入，其优先级是外接音频输入高于自带播放器音频输入。

（1）外接音频输入需用一根3.5mm音频线与外界播放器连接，另外一端必须接到功放的外接“音频输入”②插孔，注意播放器的音量③应适当,否则将会烧坏功放芯片和损坏喇叭。

（2）自带播放器输入：首先把优盘或sd卡插入相应位置11、12、13，然后把播放器开关打开⑥，启动自带播放器。

浩瀚音响 PA105 PA205 专业音频放大器说明书

®StudioPRO High Performance Professional AudioMODEL:PA105/PA205PA AMPLIFIERINTRODUCTIONYour New PYRAMID PA105/PA205PA AMPLIFIER gives you the power and versatility you need in a professional sound system.The amplifier's wide frequency response makes it suitable for amplifying music or vocal program material.It can be used for live bands,office paging systems, public announcements,or a variety of other installations.Please read this manual throughly before you attempt to set up and use the amplifier.It contains a range of installation suggestions as well as instructions to ensure safe usage.Installed properly,you can expect years of trouble-free service from this product.FEATURES AND CONTROLSFRONT PANEL-PA105/PA2051.Power On/Off2.Phone JackLets you connect a pair of stereo headphones for private listening or cueing(monitoring)sound prior to"airing"it.3.MIC1&MIC2JackAllows you to connect up to two6.35mm type microphone.4.LED Level Display Meter5.Three Input Sources Mixing ControlsControls the sound level for each of the audio input sources.PHONO/AUXAllows you to select and connect an alternative high level(AUX/CD)or low level(PHONO)audio sound source.6.Tone Control(PA105)Lets you adjust the sound frequency to the acoustics of a particular performance environment.7.100Hz,1kHz,&8kHz Equalizer Controls(PA205)To enhance the sound or tailor the high,midrange,and low frequencies for each audio source input to the acoustics of a particular performance environment,you can adjust these equalizer tone controls.8.Master VolumeLets you adjust the overall sound level.REAR PANEL-PA105/PA2059.Voltage SwitchThe amplifier has selectable input voltage from110V/60Hz which is the standard in USA and CANADA.You can also switch the input voltage to220V/50Hz for EUROPEAN operation.Please make sure the switch is in the proper position before operating,otherwise severe damage will result not cover by the warranty.Please also replace the fuse with proper rating in this situation (see the SPECIFICATIONS for the fuse rating).10.Unswitched AC Accessory Outlet-300W MAX.11.DC4A/12V Input Jack(PA105)Allows you to power the amplifier from12-volt battery source.12.AUX/CD Input JackAllows you to connect any high level sound source,such as a CD player,tape deck,or tuner,to the CD/AUX jack.13.PHONO Input JackYou can connect a low level audio input source,such as a magnetic cartridge turntable to theL PHONO and R PHONO jacks.14.PHONO and AUX/CD Input SelectorLets you select the input source you want to connect to the amplifier.15.MIX BUS JackAllows you to connect another PA105/PA205to this jack to double the size of your PA system.16.Push-Terminal ConnectorsLet you easily connect speaker wires directly to the amplifiers.INSTALLATION GUIDELINESConnecting the GND(GROUND)screw terminalI f you connect a low level audio input source(turntable)to the PHONO,please connectyour turntable's ground wire(usually black or green)to the amplifier's GND terminal,to avoid a low frequency hum.You can also use this screw to ground any other system connection.Input connectionsThe PA105/PA205accept a board range of input sources,including:Microphones(up to two simultaneously)Compact Disc(CD)playerCassette,Reel-to-Reel or other tape playerRadio TunerMagnetic Cartridge TurntableConnecting microphonesThe MIC1and MIC2jacks permit you to connect two microphones with6.35mm plug.Connecting a CD or tape player,or tunerIn this Situation,set the PHONO and AUX/CD SELECTOR switch to the AUX/CDConnecting a turntableIn this Situation,set the PHONO and AUX/CD SELECTOR switch to the PHONO.Speaker connectionsOne or more speakers(4,8,or16-Ohm)speakers can be connected to the amplifier with or without transformers.However,before you connect any speaker to the amplifier,the total speaker impedance must be calculated in order to avoid damage to the amplifier.A total speaker impedance greater than16Ohms or less than4Ohms can be cause this damage to occur.System2:Two(or more)speakers in series 1.Connect the LEFT SPEAKER(-)to the amplifierCOMMON terminal.2.Connect the LEFT SPEAKER(+)to the RIGHTSPEAKER(-).3.Connect the RIGHT SPEAKER(+)to the amplifier's4-Ohm,8-Ohm,or16-Ohm terminal,depending on the TOTAL IMPEDANCE of the two speakers.If each speaker has an impedance of8Ohms,the total speaker impedance in this series configuration is16Ohms.To begin with,in order to ensure equal volume from each speaker,all connected speakers should have the same impedance.A proper total impedance with the4to16Ohms range can be achieved by combining series and paralled speaker connections.Please see the diagrams which follow the same impedance.Finally,always use the shortest length of speaker wire possible of proper ually,18-gauge wire is adequate for lengths under25feet,while16-gauge is used for greater lengths.System1:Single speaker system1.Connect the speaker(-)terminal to the amplifierCOMMON terminal2.Depending on the speaker being used,connect thespeaker(+)terminal to the amplifier's4-Ohm,8-Ohm or16-Ohm amplifier terminal.or Tape Playerthe Phono PositionNOTE:ADDITIONAL SPEAKERS MAY BE INCLUDED IN SERIES,BUT IT IS NECESSARY TO CALCULATE TOTAL IMPEDANCE,AND CONNECT THE SPEAKER CIRCUIT TO A TERMINAL OF APPROPRIATE IMPEDANCE.FOR EXAMPLE,IF THREE SPEAKERS OF 4-OHM ARE USED,TOAL IMPEDANCE IS 12OHMS,YOU SHOULD CONNECT TO THE 16-OHM TERMINAL.System 3:Two (or more)speakers in parallel1.Connect the LEFT SPEAKER (-)to the RIGHT SPEAKER (-).2.Connect BOTH the LEFT SPEAKER (-)and the RIGHT SPEAKER (-)to the amplifier COMMON terminal.3.Connect the LEFT SPEAKER (+)to the RIGHT SPEAKER (+).4.Connect BOTH the LEFT SPEAKER (+)and RIGHT SPEAKER (+)to the amplifier 4-Ohm,8-Ohm or 16-Ohm terminal,depending on the TOTAL IMPEDANCE of the two speakers.If each speaker has an impedance of 8-Ohm,the total speaker impedance in this parellel configuration is 4Ohms.4.Connect the speakers'(-)terminals to the amplifier's COMMON terminal.5.Connect the speakers'(+)terminals to the amplifier's 4-Ohm,8-Ohm,or 16-Ohm terminal,depending on the TOTAL IMPEDANCE of the FOUR SPEAKERS.See the chart below for some samples system suggestions:COMBINATION OF TWO SERIES PAIRS IN PARALLELSERIESPARALLELTOTALUse this TO EACH PAIR TO TWO PAIRS IMPEDANCE amp (net impedance)(net impedance)IN THIS TYPE terminal 4-OHM +4-OHM 8-OHM +8-OHM 4-OHM4-OHM(8OHMS)(4OHMS)8-OHM +8-OHM 16-OHM +16-OHM8-OHM 8-OHM(16OHMS)(8OHMS)16-OHM +16-OHM 32-OHM +32-OHM 16-OHM 16-OHM(32OHMS)(16OHMS)SERIES/PARALLEL VARIATIONSAlthough the description above is for combining TWO SERIES PAIRS in a PARALLEL hook up,you may also select to combine a SERIES PAIR and a PARALLEL PAIR in a PARALLEL hook up.Simply be sure you have properly calculated the total impedance,and connect the (+)speaker circuit wire to the proper amp terminal.For example,if you use a SERIES PAIR of 8-Ohms speakers (the total impedance is 16ohms)and a PARALLEL PAIR of 8-Ohms speakers (the total impedance is 4ohms)in a PARALLEL hook up,the TOTAL IMPEDANCE of this system is 3.2OHMS,so you should connect the (+)speaker circuit wire to the 4-OHM terminal.System 4:Four speakers in series/parallel combination1.Group the four speakers into two pairs.2.Connect each pair of speakers in SERIES (see system 2above).If you connect 8-ohm speakers,the total impedance of each pair is 16ohms.3.Connect the two pairs of speakers in PARALLEL,If you connect 8-ohm speakers,the total impedance of both pairs is 8ohms.Note:If each of the four speakers is 8ohms,the total speaker impedance of the combined series/parallel connection described above is also 8ohms.Likewise,the total speaker impedance is 4or 16ohms,if the speakers are 4or 16ohms respectively.See the chart below for some samples system suggestions:COMBINATION OF ONE SERIES PAIR AND ONE PARALLEL PAIR IN PARALLELSERIES TO ONE PARALLEL TO ONE TOTAL IMPEDANCE Use this SPEAKER PAIR SPEAKER PAIR COMBINING TWO amp(net impedance)(net impedance)PAIRS IN PARALLEL terminal8-OHM+8-OHM8-OHM+8-OHM 3.2OHMS4-OHM(16OHMS)(4OHMS)16-OHM+16-OHM8-OHM+8-OHM 3.6OHMS4-OHM (32OHMS)(4OHMS)4-OHM+4-OHM16-OHM+16-OHM 4.0OHMS4-OHM (8OHMS)(8OHMS)8-OHM+8-OHM16-OHM+16-OHM 5.3OHMS8-OHM(16OHMS)(8OHMS)This example shows for the first three systems in chart. In this case,4-Ohm terminal is used your system impedance may be varied depending on the impedances of the individual speakers,and may reguire hook up to the8or16Ohms terminal.System5:Connecting speakers with transformers 1.Locate the input taps on your transformer.These taps are on side of the transformer,and are rated in watts, 10,5,2.5,ually,each speaker in a system uses the same wattage tap.Connect the selected tap to the amplifier70V RMS terminal.If you wish a particular speaker to have a higher volume level,connect the wire from70V RMS to a higher wattage tap on the transformer.2.Connect the transformer's COMMON tap on the primary side to the amplifier COMMON terminal.3.Connect the speaker's(+)terminals to the transformer's secondary tap that matches the speaker's TOTAL IMPEDANCE.Locate on the opposite side of the transformer,these secondary taps are outputs,and are rated in Ohms4,8or16.4.Connect the speaker's(-)terminals to thetransformer's COMMON tap on the secondary side. NOTE:Before connecting the speakers,please be sure the total wattage of the primary tap you use doesnot exceed the amplifier's maximum power rating,PA10520W and PA20540W.ALSO:Avoid,where possible,multiple connections to the70V RMS and COMMON terminals.Using headphonesTo listen privately,or to monitor sound sources, connect a pair of low impedance stereo headphones (not supplied)with6.35mm plug into the PHONES jack on the amplifier front panel.Please listen safely.Follow these recommendations: Do not listen at extremely high volume levels.Extended, high-volume listening can lead to permanent hearing loss.Always start with the volume control set to a LOW level BEFORE you put the headphones on.Then gradually increase the volume as necessary.Connecting to standard AC powerAfter making all other connections,set the POWER switch to OFF position.Then connect the power cord to a standard AC outlet. Connecting to4A/12V DC power(PA105)You can power the amplifier from your vehicle's12-volt battery.Connect the supplied DC power cable's barrel plug to DC12V IN jack on the amplifier,and then connect the cable's other end to the12-volt accessory socket on the vehicle,such as the cigarette-lighter socket. CAUTIONS:PLEASE UNPLUG THE AC POWER CORD BEFORE CONNECTING THE DC POWER CABLE FOR THIS12V POWER USAGE,AND DISCONNECT THE DC POWER CABLE BEFORE PLUGING IN THE AC POWER CORD FOR AC POWER USAGE.THE VEHICLE USING FOR THIS POWER SOURCE MUST HAVE A NEGATIVE GROUND ELECTRICAL SYSTEM.IF YOU ARE NOT SURE OF IT,PLEASE CHECK WITH YOUR VEHICLE'S DEALER.Turning the amplifier on1.Turn on the audio input source equipment which is connected to the amplifier INPUT jack.2.Set all volume levels(MASTER,MIC1,MIC2,and PHONO/AUX)to their minimum level settings.3.Press the power switch to turn the amplifier on.4.Adjust the controls of MIC1,MIC2,and PHONO/AUX to the achieve desired volume and balance.Using the LED power meterThe meter LED position indicate the amplifier output power.Using the MASTER volume controlThe MASTER volume control increases or decreases output level gain.To obtain best performance with the least distortion, be sure to adjust the output level so that the LED meter does not continuallyexceed the right extreme of the meter's range. CAUTION:Setting output level too high can overdrive the amplifier,causing permanent damage.Using the MIX BUS jackYou can connect another PA105/PA205to this jack to double the size of your PA system.This lets you use up to four microphones and two turntables(or two auxiliaryies)sound souces. Use a shield cable with phono plugs at each end,and connect the cable between the MIX BUS jacks on the back of two amplifiers.For the best results,do not use a cable longer that6 feet.SpecificationsOutput Power at THD10%,1kHz......................................20W(PA105)/40W(PA205) Maximum Power....................................80W(PA105)/120W(PA205) THD at1W,1kHz Low-Pass FilterMIC1...................................................................1% MIC2...................................................................1% AUX/CD..............................................................1% PHONO...............................................................1% Frequency Response(at1W,+/-3dB)MIC1.................................................80Hz-20kHz MIC2.................................................80Hz-20kHz AUX/CD............................................80Hz-20kHz PHONO(RIAA100Hz/10kHz)......+13dB/-13.5dB Input Sensitivity(at10%THD,1kHz)MIC1.............................................................2.5mV MIC2.............................................................2.5mV AUX/CD.........................................................150mV PHONO...........................................................3.5mV Signal-Noise Ratio(Input Shorted)with WTD MIC1................................................................60dB MIC2................................................................60dB AUX/CD...........................................................70dB PHONO............................................................60dB Noise Level(Input Shorted)..............................0.75mV Tone Control(PA105)-15dB(High Cut at10kHz)Equalizer Control Range(PA205)100Hz.......................................................+/-10dB 1kHz.........................................................+/-10dB 8kHz.........................................................+/-10dB Power Requirement120V AC,60Hz/240V AC,50Hz4A12V DC(OPTION OF PA105)Power Fuse120V AC........................1.2A(PA105)/1.5A(PA205) 240V AC......................0.6A(PA105)/0.75A(PA205) Dimensions H x W x D,31/3x123/4x89/10(inches)85x324x226(mm)Weight,(kg)(PA105)3.56kgs/(PA205)3.92kgs。

【精品】功放机说明书

【关键字】精品功放机说明书篇一：功放的说明书说明书一、面板布置：1、本功放由功放、播放器、电平指示器、扬声器四个模块组成。

其中功放有缩小音频信号的功能，可把播放器音频、外接音频、话筒音频信号缩小，通过调节旋钮可改变信号的大小。

播放器有读取内存卡里的音频文件并转化成音频信号（另有收音机功能）的功能。

电平指示模块是通过计算音频信号，获取音频里音调的高低信号，再通过led灯显示出来，具有装饰的功能。

扬声器是把音频信号转化成声音信号的作用。

2、正前方：电平指示1314⑥ ⑦ ⑧ ⑨ ⑩11 12① ② ③ ④⑤左声道右声道①电源指示灯、②音频输入、③音量旋钮、④话筒音量旋钮、⑤话筒输入、⑥播放器电源开关、⑦上一曲/音量-、⑧播放/暂停、⑨下一曲/音量+、⑩播放模式、11数据线插孔、12 usb插孔、13播放器显示屏、14 sd卡插孔（注：11、12、14插孔都是输入插孔，不能输出）3、正后方：变压器变压器线散热器遥控器电源线耳机插孔扬声器插头注意：1、使用前检查电源线和变压器线是否完好，外层绝缘皮是否有破损，若有破损则需要用电胶布粘住，防止皮肤接触而触电。

2、通电时最好不要触碰变压器和变压线。

3、使用时禁止触碰散热器、变压器，防止因温度过高而烫伤。

4、当使用耳机听音频时，只需把耳机插入耳机插孔，但要注意，在使用耳机之前要控制好音量，防止音量过大而损坏耳机。

一般操作是先把音量调为最小，插入耳机后再慢慢增大。

二、使用步骤：1、打开电源：在打开电源前先把音乐音量，话筒音量④调为最小，并确定自带播放器开关⑥处于关闭状态。

然后把电源线接电，则电源指示灯会亮①。

2、接音频：音频有两种，一种是外接音频输入②，另外一种是自带播放器输入，其优先级是外接音频输入高于自带播放器音频输入。

（1）外接音频输入需用一根3.5mm音频线与外界播放器连接，另外一端必须接到功放的外接“音频输入” ②插孔，注意播放器的音量③应适当,否则将会烧坏功放芯片和损坏喇叭。

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P A纯后级广播功放说明书 The latest revision on November 22, 2020
OWNER’S MANUAL
Before operating, please read this manual completely.
PA3002
PA4002
PA5002
Public Address
Amplifiers
FEATURES
Transformer isolated 100V, 70V and 4 Ohms speaker outputs.
5 LED indicator for status display.
XLR socket and mm jack for link convenient.
Output circuit shorting protection & display.
Series amplifiers of high output power available.
AMPLIFIER FRONT VIEW
1. AC power switch (1 is power on and
the “power LED ” is on )
2. POWER LED indicator
3. CLIP LED indicator (Please reduce
4. the gain to prevent severely
clipped
waveforms reaching the loudspeakers)
5. SIGNAL LED indicator
(Output level) 6. PROT LED indicator (DC or
output circuit shorted indicator) 7. TEMP LED indicator (high temperature indicator) 8. Volume (input attenuator) 9. Unit’s fan exhaust window
AMPLIFIER REAR VIEW and CONNECTIONS
1. fan intake window
2. COM. output
3. 4～16 output
4. 70V output
5. 100V output
6.
220V AC fuse
7. XLR input 8. socket input 9. socket link 10. XLR link
11. 220VAC power cord
OPERATING PRECAUTIONS
1 23 4 5 6 7 8
Make sure the AC main voltage is correct and is the same as that printed on the rear of the amplifier. Damage caused by connecting the amplifier to improper AC voltage is not covered by the three-year US warranty.
Make sure the power switch is off before making any input or output connections. It is always a good idea to have the gain controls turned down during power-up to prevent speaker damage if there is a high signal level at the inputs.
CONNECTING INPUTS
Input connections are made via either the 3-pin XLR -type connectors (Figure 1) or mm sockets on the rear side of the amplifier.
CONNECTING OUTPUTS
Load can be connected using banana plugs or spade lugs. A black binding post is considered “COM”, while the three red binding posts are considered “hot”, and the voltage is 38V （different from the model ）, 70V , and 100V .
Note:
Never connect the “hot ”terminals together.
When connecting load （speakers ）, it is better to use one pair of output terminals only.
If the PROT Led goes on steadily while power has been turned on and signal has been fed, there must be a trouble of output shorted. Please turn the unit off and correct the trouble then turn it on again.
Figure 1 3-pin XLR-type
connectors
SPECIFICATIONS
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PA3002
PA4002
PA5002
公共广播系列
纯后级广播功放
性能特点
100V, 70V 定压输出和4 Ohms 定阻输出（平衡，不接地）。

5 单位LED 显示器，作状态显示。

RCA 插口和 XLR 插口供方便地实现环接。

输出短路保护并示警。

成系列大功率纯后级可供选择。

1 23 4 5 6 7 8 前面板
1. 交流电源开关（按下1为电源接通状态且电源指示灯亮）
2. 电源指示灯
3. 削顶指示灯 (为避免严重削顶请适当降低增益)
4. 信号指示灯 (输出电平)
5. 保护指示灯 (直流或短路保护 )
6. 温度指示灯(超温指示)
7. 音量控制旋钮
8. 通风散热窗
后面板及连接
1
2．输出公共端
3．4～16 输出 4．70V 输出 5．100V 输出
6．220V 交流保险丝
8．输入插口 9．环接插口
10．卡隆环接插口 11．220V 交流电源线
操作注意事项
电源电压应确实与本机相符,由电压不符造成的损坏不在保修之列。

所有输入输出连接好以前,不要通电；通电前最好把音量调至最小以防损坏扬声器。

当通电并输入信号後,如果保护指示灯(PROT)点亮,即说明有输出短路故障.应即切断电源,排除故障後重新加电.
输入之连接
所有输入均应连接於机器後面板之卡隆插口（图1）或 mm 插口。

输出之连接
输出端子在後面板，可用香蕉插或铲形插连接。

黑色乃公共端，红色乃热端。

通常应使用“定压”端子输出，此时各个扬声器应带线间变压器，扬声器的总功率应与功放的额定输出功率相当。

扬声器在近距离配置时也可用“定阻”（4～16Ω）端子输出，相应地此时扬声器的总阻抗应为4～16Ω。

注意：
宜只选用一对输出端子；
任何时候都不应把两个“热端”连接在一起。

性能规格
图 1 三线卡隆插
性能规格如有改变，恕不另行通知。