PA 纯后级广播功放说明书
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)。
功放机说明书
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。
dbx_PA_中文说明书
PA 的应用（2×4）
PA 的应用（2×5）
PA 的应用（2×6）
PA 调试方法简介
首先按下向导<WIZARD> 功能键
显示屏上将出现系统设置 （System Setup）、自动均衡 向导（Auto EQ WIZARD） 和反馈抑制向导（AFS WIZARD）三个选项
系统设置（System Setup）
DriveRack PA 数字化处理器
TMPA
TM
……
PA 处理器的技术特性
内置JBL扬声器和CROWN功放参数，可自动调试 12段（AFS）反馈抑制器 28段均衡器 dbx压限器 120A低频谐波激励器 2×3、2×4、2×5、2×6分频 参数均衡
反馈抑制向导 （AFS WIZARD）
4. 5.
4. 慢慢提升调音台的增益电平 5. 固定滤波点将自动捕捉和记录产生的反馈点，结束后按<NEXT PG>键完成
整个系统的调试
注：现场滤波点将在演出现场自动跟踪随时可能产生的 反馈点，以保证整个系统的正常运行
•安恒利香港总公司：香港新界葵涌货柜码头路77-81号丰裕中心11楼 电话： （852）29422100 传真： （852）24240788 •安恒利上海办事处及维修技术支援中心：上海市平凉路716号3楼 电话： （021）55211510 传真： （021）65897112
系统设置（System Setup）
5. 6. 7. 8.
5.旋转<DATA>数据轮，选择功放，选择后按<NEXT PG>键 6.旋转<DATA>数据轮，选择功放的灵敏度，选择后按<NEXT PG>键 7.旋转<DATA>数据轮，选择功放的输出电平，选择后按<NEXT PG>键 *按以上步骤选择其他功放的各项参数* 8.如果选择过超低扬声器，系统会询问驱动超低扬声器的功放是采用正常模式 或是桥接模式，旋转<DATA>数据轮进行选择，选择后按<NEXT PG>键， 按照系统提示按<DATA>轮装载您的设置
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。
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。
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。
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。
DSPPA广播系统说明书
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
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
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
1 2 3 4 5 6 7 8
1
OPERATING PRECAUTIONS
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
HTTP:/DSPPA ACOUSTIC TECHNOLOGY CO., LTD.使用
说明
欢迎惠顾。
使用前请认真阅读本说明书。
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 2 3 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．风扇风口 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
7． 卡隆输入口 8． 输入插口 9． 环接插口
10．卡隆环接插口 11．220V 交流电源线
1
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。
图 1 三线卡隆插
性能规格
性能规格如有改变，恕不另行通知。