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TOA 900 Series In-Wall Mixer/Amplifier 6-Channel Expandable Wall Unit | 120 W

TOA 900 Series In-Wall Mixer/Amplifier 6-Channel Expandable Wall Unit | 120 W

SoundPro Item: 45978 | Part Number: W-912A UL

$1,967.00
$2,432.00 $1,967.00
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MSRP: $2,432.00 | MAP: $1,967.00

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  • Six Front-Panel Module Ports Accept The Full TOA Plug-In Module Range
  • Expandable To Eight Inputs Via Optional WE-2 Kit For Growing Installations
  • Built-In 9-Band One-Octave Graphic EQ Addresses Room Acoustics At The Amplifier
  • Built-In Compressor With Adjustable Threshold Protects Against Output Distortion
  • Supports 4 And 8 Ohm Loads Plus 25 V And 70 V Constant-Voltage Distribution
  • Key-Locked Hinged Door Prevents Unauthorized Adjustment Of Controls
  • Flush And Surface Mounting Options Suit A Wide Range Of Wall Configurations
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The TOA 900 Series In-Wall Mixer/Amplifier is engineered for commercial installed audio environments where a clean, low-profile solution is needed to drive a single-zone speaker system. Facilities managers, systems integrators, and AV installers working in corporate, educational, retail, and institutional spaces will find this series well-suited for background music, paging, and public address applications where reliability and intelligibility are the primary demands.

Six front-panel module ports accept the full range of TOA plug-in input modules, and the optional WE-2 expanding kit adds two additional input ports for systems that grow over time. The built-in 9-band one-octave graphic equalizer addresses room acoustics directly at the amplifier, reducing feedback tendencies and improving speech intelligibility without requiring an external processor. A built-in compressor with adjustable threshold protects against output distortion from excessive input levels and maintains consistent volume. Output terminals support 4 and 8 ohm speaker loads as well as 25 V and 70 V constant-voltage distribution systems, making the unit compatible with a wide range of installed speaker configurations.

Available in 60 W and 120 W output versions, the series offers integrators a scalable choice based on zone size and coverage requirements. A key-locked hinged front door protects controls from tampering, and the unit supports both flush and surface mounting. LED power and peak indicators provide at-a-glance system status. Compared to rack-mount commercial amplifiers, this wall-mount format eliminates the need for a dedicated equipment room, simplifying installation in smaller facilities.

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Specifications

Electrical
Power Source
120 V AC, 60 Hz
Power Consumption
100 W
Output Power
120 W RMS
Audio
Power Bandwidth
Direct: 20 to 20,000 Hz, 0.5% THD; Transformer: 50 to 20,000 Hz, 0.5% THD
Frequency Response
Direct: 30 to 20,000 Hz +/-1 dB; Transformer: 30 to 15,000 Hz +/-1 dB; 30 to 20,000 Hz +1 dB, -2 dB
Total Harmonic Distortion
0.02% at 1 kHz, Rated Output
Signal To Noise 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
Output Regulation (1 kHz)
Direct: Less Than 0.5 dB, No Load to Full Load; Transformer: Less Than 1.0 dB, No Load to Full Load
Performance
Compressor Attack Time
No Greater Than 2 msec
Compressor Compression Range
30 dB
Compressor Release Time
Variable 20 msec to 2 sec
Compressor Distortion
Less Than 1%
Equalizer
9-Band One-Octave Graphic; Center Frequencies: ISO 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16 kHz; Equalization Range: +/-12 dB
High-Pass Filter
180 Hz, 12 dB/octave
Low-Pass Filter
7 kHz, 12 dB/octave
Connectivity
Input
Six Input Ports: 100 mV / 10 kohms each; One Bridging Input/Output: 100 mV / 3.3 kohms
Input Connector
Card-Edge Connector (Ports 1-6)
Output Connector
Screw-Terminal Strip
Bridging Input/Output Connector
Screw-Terminal Strip
Mute Connector
Screw-Terminal Strip
Construction
Finish
Silver
Indicators
1 LED Power Indicator; 1 LED Peak Indicator
Protection
Built-in with 2 AC Fuse (1 inside) and 1 Output Circuitry; Output Circuitry Protection when Heatsink Temperature Overheats
Dimensions
Size (W x H x D)
4" x 2.4" x 3.8" (101.6 x 60.3 x 95.3 mm)
Weight
Unit Weight
38.14 lbs (17.3 kg) without Input Modules and Back Box
Included Items
Included Accessories
Volume Control Cover x 3
Identifiers
MPN
W-912A UL

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