Product Setup Information
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Description
From the TOA 900 series of mixer/amplifiers, the A-912MK2 is a customizable unit ideal for background music, paging, on-hold messages, and other applications in hospitals, airports, schools and other similar venues. The A-912MK2 is designed for high performance with a low self-noise, a wide frequency response, and excellent output regulation. This 120W unit features 8 input channels that accept any combination of TOA's plug-in modules for ultimate customizability. The front panel features a master volume control and individual channel volume controls, as well as bass and treble controls.
Input capacity may be increased by connecting another mixer or mixer/amplifier to the bridge in/out jack. The unit features transformer-isolated outputs, and a direct output mode if non-transformer operation is desired.
| Type | 8-channel mixer power amplifier |
|---|---|
| Power Requirement | AC mains, 120 V, 60 Hz |
| Power Consumption | 180 W |
| Output Power | 120 W RMS |
| Power Band Width | (D) 20 〜 20,000 Hz, 0.5% THD, (T) 50 〜 20,000 Hz, 0.5% THD |
| Frequency Response | (D) 20 〜 20,000 Hz, ±1 dB (T) 20 〜 15,000 Hz, ±1 dB, (T) 20 〜 20,000 Hz, +1 dB, -3 dB |
| T.H.D | 0.02% at 1 kHz, rated output |
| Inputs | Eight Input Ports : Each port accepts any input modules. One Bridging Input/Output |
| Input Sensitivity /Impedance | Input Port #1 to #8 : 100 mV/10 kΩ Bridging Input/Output : 100 mV/3.3 kΩ |
| Preamp OUT /Power Amp IN | 1000 mV into 600 Ω/1000 mV, 10 kΩ |
| Outputs(T)=Transformer (D)=Direct | Main (T) : 8 Ω, 25 and 70 volts, balanced, Main (D) : 4 Ω, unbalanced Aux : 10 kΩ, 1 V |
| 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 〜 20,000 Hz) Tone defeat switch on | Master volume min : 90 dB Master volume max : 77 dB Power amplifier only : 105 dB |
| Tone Controls | Bass : ±10 dB at 100 Hz, Treble : ±10 dB at 10 kHz |
| Controls | 8 Input gain control 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 | 1 Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED |
| Protection | Self-protection, with AC fuse (inside) |
| Connectors | Input No.1 to No.8 : Card-edge connector Bridging, Mixer preamp. output, Power amp. input, Aux output : RCA phono jack Output : Screw-terminal strip Mute, Remote VR : Screw-terminal strip AC outlet : 3-pin grounding type AC power cord/plug : SJT, 3-prong type |
| Temperature Range | -10℃ 〜 +60℃ (12゜F 〜 140゜F) |
| Finish | Black |
| Dimensions(W×H×D) | 420(16.54") × 99.1(3.90") × 358(14.09") mm |
| Weight | 11.4 kg (25.13 lb.) |
| Accessories | Volume control cover (YA-920)……4 |
| Option | Rack mounting bracket (MB-25B) |