Toa w 900 series wall amplifier specs
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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 output 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 mounting 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 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 andcompressor 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 and 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 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 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 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 hinged 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.
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Specifications Note: (D): Direct output (T) Transformer output Model Type Output Power 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 power amplifier 60W RMS120W RMS (D): 20-20,000Hz. 0.5% THD (T): 50-20,000Hz, 0.5% THD (D): 30-20,000Hz ±1dB, (T): 30-15,000Hz ±1dB, (T): 30-20,000Hz +1dB, -2dB 0.02% at 1 kHz, rated output Si X input ports: Each port accepts any input module except T-01S. One bridging input/output(Use T-01S only in port #5 or #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 Attack time:no greater than 2 milliseconds Compression 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/octave Low-pass 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 controls 1 Low-cut switch 1 Power ON/OFF switch(60Hz, 6dB/octave, inside) 1 LED power indicator 1 LED peak indicator Built-in with 2 AC fuses (1 inside) and 1 output circuitry Output circuitry protection when heatsink temperature overheats Connectors Power Consumption Users Space (Blank Panel) Input #1 to #6: Card-edge connectorMuteScrew-terminal strip Output:Screw-terminal stripAC power cord SJT 3-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 Dimensions Face 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 and back box) 30.20 Ibs (13.7kg)38.14 lbs. (17.3kg) 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 Plug-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