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TOA A-912MK2 UL 900 Series 8-Channel Mixer Power Amplifier 120W

TOA A-912MK2 UL 900 Series 8-Channel Mixer Power Amplifier 120W

SoundPro Item: 45945 | Part Number: A-912MK2 UL

$1,066.00
$1,319.00 $1,066.00
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MSRP: $1,319.00 | MAP: $1,066.00

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  • Eight Modular Input Ports Accept Optional Plug-In Modules For Flexible Source Configuration
  • Transformer And Direct Outputs Cover 8 Ohm, 25V, 70V, And 4 Ohm Loads
  • Bridging Input/Output Extends System Integration Options
  • Separate Preamp Out And Power Amp In Allows Flexible Signal Chain Routing
  • Tone Controls With Defeat Switch And Low-Cut Filter For On-Site System Tuning
  • Self-Protection Circuitry With LED Status Indicators For Reliable Installed Operation
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The TOA A-912MK2 UL is a 2U rack-format mixer power amplifier designed for commercial installed audio environments where a single-zone, multi-source mixing solution is required. System integrators and AV installers working in retail, hospitality, corporate, and institutional spaces will find this unit well suited for background music distribution, paging, and general-purpose program audio requiring a clean, controlled mix from multiple inputs.

With eight input ports accepting optional plug-in modules, the A-912MK2 UL adapts to a broad range of signal sources without requiring external preamps or additional hardware. Outputs include transformer-coupled options at 8 ohm, 25V, and 70V for distributed speaker runs, plus a direct 4-ohm unbalanced output for local loads. A bridging input/output, auxiliary output, and separate preamp and power amp access points give integrators the flexibility to fit this unit into more complex signal chains or modular rack builds. Tone controls with a defeat switch, low-cut filtering, and per-input gain adjustments allow precise system tuning at the rack without additional processing equipment.

Compared to simpler fixed-input commercial amplifiers, the modular architecture of the A-912MK2 UL allows the input configuration to be matched to actual project requirements rather than locked into a fixed format. The optional MB-25B rack mounting bracket supports standard 19-inch rack integration, making it straightforward to deploy in equipment rooms and rack enclosures common to installed AV projects.

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Specifications

General
Type
8-channel mixer power amplifier
Finish
Black
Rack Format
2U
Power
Power Source
AC mains, 120 V, 60 Hz
Power Consumption
180 W
Output Power
120 W RMS
Audio
Power Bandwidth
(D) 20 Hz - 20 kHz, 0.5% THD; (T) 50 Hz - 20 kHz, 0.5% THD
Frequency Response
(D) 20 Hz - 20 kHz, +/-1 dB; (T) 20 Hz - 15 kHz, +/-1 dB; (T) 20 Hz - 20 kHz, +1 dB/-3 dB
Total Harmonic Distortion
0.02% at 1 kHz, rated output
Signal To Noise Ratio
Master volume min: 90 dB; Master volume max: 77 dB; Power amplifier only: 105 dB
Tone Control
Bass: +/-10 dB at 100 Hz; Treble: +/-10 dB at 10 kHz
Inputs
Input Ports
Eight input ports; each port accepts any input module
Additional Input
One bridging input/output
Input Sensitivity/Impedance
Input ports 1-8: 100 mV/10 kOhm; Bridging input/output: 100 mV/3.3 kOhm
Outputs
Main Output (Transformer)
8 Ohm, 25V, and 70V, balanced
Main Output (Direct)
4 Ohm, unbalanced
Aux Output
10 kOhm, 1 V
Preamp Out / Power Amp In
1000 mV into 600 Ohm / 1000 mV, 10 kOhm
Output Regulation (1 kHz)
(D) Less than 0.5 dB, no load to full load; (T) Less than 1.0 dB, no load to full load
Connectivity
Input Connectors
Card-edge connector (inputs 1-8); RCA phono jack (bridging, mixer preamp output, power amp input, aux output)
Output Connectors
Screw-terminal strip
Mute / Remote VR
Screw-terminal strip
AC Outlet
3-pin grounding type
AC Power Cord
SJT, 3-prong type
Controls And Indicators
Controls
8 input gain controls, 1 master gain control, 1 bass control, 1 treble control, 1 power on/off switch, 1 tone defeat switch, 1 low-cut switch (60 Hz, 6 dB/octave)
Indicators
Power LED, Protect LED, Signal LED, Normal LED, Peak LED
Environmental
Operating Temperature
-10 C to +60 C (12 F to 140 F)
Dimensions
Dimensions
420 (W) x 99.1 (H) x 358 (D) mm (16.54" x 3.9" x 14.09")
Weight
Weight
12.7 kg (28 lb)
Included Items
Included Accessories
Volume control cover (YA-920) x4
Identifiers
Optional Accessories
Rack mounting bracket (MB-25B)

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