Unit was inspected and was found to be used and in working condition. The unit was tested, it powered up and seem to work. No other testing was reformed. The unit show signs of normal use, and contains some surface scratches. Please note photos. TOA A-903MK2 8-Channel Mixer Power Amplifier The modules included are one U-01, one S-03, one H-01 and one H-02. Type 8-channel mixer power amplifier Power Requirement AC mains, 120 V, 60 Hz Power Consumption 60 W Output Power 30 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 k? Bridging Input/output: 100 mV/3.3 k? Preamp OUT /Power Amp IN 1000 mV into 600 ?/1000 mV, 10 k? Outputs(T)=Transformer (D)=Direct Main (T): 4 ?, 25 and 70 volts, balanced, Main (D) : 8 ?, unbalanced Aux : 10 k?, 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 Accessories Volume control cover (YA-920) ??4 Option Rack mounting bracket (MB-25B) D7-4 rl fdk 80617258 S1:8 AFH 627176