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 expanding kit. The W-906A delivers up to 60 W of output power and the W-912A 120 W. Optional accessory modules are available for use with the W-906A and W-912A to provide versatility for a wide range of operating applications. Edge connectors at the bottom of the front panel permit the selection of the TOA plug-in modules. (Please contact your local TOA dealer for details on TOA plug-in modules.) The W-906A and W-912A have a built-in one-octave graphic equalizer with 9 bands to tailor sound system frequency response to room acoustics, reducing feed-back 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 keeps it constant. Compressor’s threshold level can be adjusted. The W-906A and W-912A Mixer Power Amplifiers have output terminals to match 4 or 8 speaker systems, or speaker distribution system may be connected to the 25 or 70 V terminals. User’s (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 input is increased. Protection against tampering is assured by means of a key-locked hinged door.
| Type | In-Wall Mounting 6 Channel Mixer Power Amplifier |
|---|---|
| Output Power | 120W RMS |
| Power Bandwidth | (D)20 to 20,000 Hz, 0.5% THD (T)50 to 20,000 Hz, 0.5% THD |
| Frequency Response | (D) 30 to 20,000 Hz ±1 dB (T) 30 to 15,000 Hz ±1 dB (T) 30 to 20,000 Hz +1dB, -2 dB |
| Total Harmonic Distortion | 0.02% at 1 kHz, Rated Output |
| Inputs | Six Input Ports ; 100mV / 10kohms Each port accepts any input module except T-01S. (Use T-01S only in port #5 or #6) One Bridging Input/Output ; 100mV / 3.3kohms |
| Outputs | (T) 8 ohms, 25 V & 70 V, Balanced (D) 4 ohms, Unbalanced |
| Output Regulation (1kHz) | (D) Less Than 0.5 dB, No Load to Full Load (T) Less Than 1.0 dB, No Load to Full Load |
| S/N Ratio | (Band Pass : 20 to 20,000 Hz Controls OFF ; 90 dB Equalizer IN ; 88 dB Master Volume Max. ;77 dB Compressor IN ; 84 dB |
| Compression | Attack Time ; No Greater Than 2msec. Compression Range ; 30 dB Release Time ; Variable 20msec. to 2 sec Distortion ; Less Than 1 % |
| Equalization | 9-band One-octave Graphic Equalizer Center Frequencies ; ISO 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16kHz Equalization Range ; ±12 dB |
| Filters | High-pass Filter ; 180 Hz, 12 dB / octave Low-pass Filter ; 7kHz, 12 dB / octave |
| Indicators | 1 LED Power Indicator 1 LED Peak Indicator |
| Protection Circuitry | Built-in with 2 AC Fuse (1 inside) and 1 Output Circuitry Output Circuitry Protection when Heatsink Temperature Overheats |
| Connectors | Input #1 to #6 ; Card-edge Connector Output ; Screw-terminal strip Bridging Input/Output ; Screw-terminal Strip Mute ; Screw-terminal strip |
| Power Requirement | 120 V AC, 60 Hz |
| Power Consumption | 100 W |
| User’s Space (Blank Panel) | Size (WxHxD) ; 101.6 (4″) x 60.3 (2.4″) x 95.3 (3.8″) mm Effective Space for Customizing Optional expanding kit WE-2 may be loaded. |
| Weight | 17.3 kg (38.14 lbs) ; Without Input Modules and Back Box |
| Color | Silver |
| Accessories | Volume Control Cover x 3 pcs |
| Associated Equipment | Plug-in Modules for Input ; M-01S, U-01S, B-01S, L-01S, I-01S Plug-in Modules for Input with MUTE ; U-11S, U-12S, B-11S, L-11S, M-11S Plug-in Modules for Input with Remote Volume Control Facility ; M-21S, U-21S Plug-in Modules for Line Output ; T-01S Plug-in Modules for Tone Signal ; S-01S, S-02S, S-03S Volume Control Cover ; YA-910 Expanded Kit ; WE-2 |
