Toa W900 Series Wall Amplifier Specs 电路图.pdf

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1、TOA 900 SERIES IN-WALL AMPLIFIER (60-WATT) (120-WATT) W-906A/912A RadioFans.CN 收音机爱 好者资料库 Features 1. 6-channel mixer power amplifier 2. Expandable to 8-input 3. Output power: 120W for W-912A, 60W for W-906A 4. Wide frequency response: 30 to 20,000Hz 1dB 5. Low distortion and noise 6. Excellent outp

2、ut regulation 7. Built-in one-octave equalizer 8. Built-in compressor 9. Self-protection circuitry design 10. Separate output terminals: 4 and 8 ohms, 25 and 70 volts 11. Extra space for customizing 12. LED pilot light 13. LED peak indicator 14. Full range of plug-in modules 15. Flush and surface mo

3、unting Description The TOA W-906A and W-912A Mixer Power Amplifiers control and mix up to six independent input signals plus two inputs with use of an expanding kit WE-2. The W-906A delivers up to 60 watts of output power and the W-912A 120 watts. Twenty one optional accessory modules are available

4、to allow the W-906A and W-912A amplifiers to be configured for a variety of applications. Edge connectors on the rear of the units permit TOA modules to be easily inserted for use. Modules include the M Series microphone preamplifiers, available with muting, remote volume control, voice gate and com

5、pressor options. The U Series auxiliary preamplifiers, available with muting, remote volume control and compressor options. The B Series bridging transformers, available with muting option, the L Series line matching transformers, available with muting option, the S Series signal generator modules a

6、nd the I-01S Exes interface paging module. Also available are the T-01S module featuring 600-ohm balanced output capability and the T-02S module featuring auxiliary input and balanced line output for music-on-hold. For detailed module specifications, please refer to publication TOA 900 Series Module

7、 Specifications, Features and Connector Chart. The W-906A and W-912A Mixer Power Amplifiers have a built-in one-octave graphic equalizer with 9 bands to tailor sound system frequency response to room acoustics, reducing feedback tendencies and improving intelligibility. A built-in compressor circuit

8、 is provided to protect the output level from distortion as a result of excessive input and keep it constant. The compressors threshold level can be adjusted. The W-906A and W-912A Mixer Power Amplifiers have output terminals to match 4- or 8-ohm speaker systems, or a speaker distribution system may

9、 be connected to the 25 or 70-volt terminals. Users (blank) space is provided for additional functions to be made by the customers. The expanding kit (optional) may be loaded in this space when the number of inputs is increased. Protection against tampering is assured by means of a key- locked hinge

10、d door. The W-906A and W-912A can be mounted in any four-inch wall with use of the BX-9F Flush Mounting Back Box. Wall mounting is also possible with use of the BX-9S Surface Mounting Box. RadioFans.CN 收音机爱 好者资料库 Specifications Note: (D): Direct output (T) Transformer output Model Type Output Power

11、Power Bandwidth Frequency Response Total Harmonic Distortion Inputs Input Sensitivity/Impedance Outputs Output Regulation (1kHZ) Signal-to-Noise Ratio (Band Pass: 20-20,000 Hz) Compression Equalization Filters Controls Indicators Protection Circuitry W-906AW-912A In-Wall mounting 6-channel mixer pow

12、er amplifier 60W RMS120W RMS (D): 2020,000Hz. 0.5% THD(T): 5020,000Hz, 0.5% THD (D): 3020,000Hz 1dB, (T): 3015,000Hz 1dB, (T): 30-20,000Hz +1dB, -2dB 0.02% at 1 kHz, rated output SiX input ports: Each port accepts any input module except T-01S. One bridging input/output(Use T-01S only in port #5 or

13、#6.) Input ports #1 to #6: 100mV/10k ohms,Bridging input/output 100mV/3.3k ohms (T): 8 ohms, 25V & 70V balanced(D): 4 ohms, unbalanced (D): Less than 0.5dB, no load to full load(T): Less than 1.0dB, no load to full load Controls OFF:90dBEqualizer IN:88dB Master volume Max.: 77dBCompressor IN: 84dB A

14、ttack time:no greater than 2 millisecondsCompression range: 30dB Release time: variable 20 msec to 2 sec.Distortion:less than 1% 9-band one-octave graphic equalizer Center frequencies: ISO 63, 125, 250, 500, lk, 2k, 4k, 8k, 16k Hz Equalization range: 12dB High-pass filter: 180Hz 12dB/octaveLow-pass

15、filter: 7kHz 12dB/octave 6 Input gain controls1 Equalization ON/OFF switch 1 Master gain control1 High-pass filter ON/OFF switch 1 Compression level control1 Low-pass filter ON/OFF switch 9 Equalizer controls1 Low-cut switch 1 Power ON/OFF switch(60Hz, 6dB/octave, inside) 1 LED power indicator1 LED

16、peak indicator Built-in with 2 AC fuses (1 inside) and 1 output circuitry Output circuitry protection when heatsink temperature overheats Connectors PowerConsumption Users Space (Blank Panel) Input #1 to #6: Card-edge connectorMute Screw-terminal strip Output:Screw-terminal stripAC power cord SJT 3-

17、conductor Bridging input/output: Screw-terminal strip AC 120V, 60Hz, 100WAC 120V, 60Hz, 180W Effective space for customizing 4(W) x 2-3/8(H) x 3-3/4(D) Optional expanding kit WE-2 may be loaded DimensionsFace panel: 26-3/4(H) x 16-1/4(W) x 1-1/8(0) (680 x 412 x 28 mm) Weight (without input modules a

18、nd back box)30.20 Ibs (13.7kg) 3 8 . 1 4 l b s . ( 1 7 . 3 k g ) Color Silver Standard Accessories 3 Volume control covers Other Features Output disconnect for approx. 5 sec. after power turned on Muting Function: provided for modules U-11S, U-12S, B-11S, L-11S, M-11S, L-41S Associated Equipment Plu

19、g-in modules (see module specifications) Volume control cover.YA-910 Expanding kit.WE-2 *Power Bandwidth and Frequency Response are from input port to power amplifier output. *Specifications are subject to change without notice. Controls and Functions Architects and Engineers Specifications The In-W

20、all Amplifiers shall be capable of controlling and mixing up to 6 independent input signals plus 2 inputs with the use of an expanding kit. The amplifiers shall deliver up to 60W or 120W of output power. The TOA plug-in accessory modules designed for use with the W-906A and W-912A In-Wall Amplifiers

21、 shall utilize the latest in surface mount component technology and include the following modules: the M Series microphone preamplifiers available with muting, remote volume control, voice gate and compressor options, the U Series auxiliary preamplifiers available with muting, remote volume control

22、and compressor options. The B Series bridging transformers, available with muting option, the L Series line matching transformers, available with muting option, the S Series signal generator modules and the I-01S Exes interface paging module. Also available shall be the T-01S module featuring 600-oh

23、m balanced output capability and the T-02S module featuring auxiliary input and balanced line output for music-on-hold. The In-Wall Amplifiers shall have a built-in 1-octave graphic equalizer with 9 bands to tailor sound system frequency response to room acoustics, reducing feedback tendencies and i

24、mproving intelligibility. A built-in com- pressor circuit shall be provided to protect output level from distortion as a result of excessive input and keep it constant. The compressors threshold level shall be able to be adjusted. The In-Wall Amplifiers shall have output terminals to match 4- or 8-o

25、hm speaker systems, and shall allow a speaker distribution system to be connected to the 25- or 70-volt terminals. A users blank space shall be provided for additional functions chosen by the user. This space shall accept an expanding kit (optional) when the number of inputs is increased. A key-lock

26、ed door shall be provided to assure protection against tampering. The In-Wall Amplifiers shall be able to be mounted in any 4-inch wall with use of the BX-9F flush mounting back box. Wall mounting shall also be possible by using the BX-9S surface mounting box. The In-Wall Amplifiers shall be TOA mod

27、els W-906A Output Equalizer Characteristics Frequency Response at 1/10 rated output (Direct output: 4-ohm load, Transformer output:70V line) Power Output vs Frequency at 0.5% THD (Direct output: 4-ohm load, Transformer output:70V line) and W-912A. *NOTE 1: THE T-01S MODULE WILL ONLY FUNCTION IN PORT

28、S 5 AND 6 OF THE FOLLOWING MODELS: A-903A, A-906A, A-912A, M-900A, W-906A AND W-912A. *NOTE 2: W-906A AND W-912A IN-WALL AMPLIFIERS REQUIRE MODULES WITH SCREW TERMINALS. Optional Back Box BX-9F Back Box for flush mounting Weight: 12.35 Ibs. (56kg) BX-9S Back Box for surface mounting Weight: 16.09 Ibs. (7.3kg) Printed by QQ Printing 3/97