Input: Line level (+4 dBu bal; -10 dBV unbal)Input Impedance: 20 kΩ balanced bridging; 10 kΩ unbalInput / Output Connector: Detachable terminal blockGain Adjustment: Single turn audio taperMinimum Input Levels:Balanced: -26 dBu (to cross compressor threshold)Unbalanced: -28 dBV (to cross compressor threshold)Maximum Input Levels:Balanced: +23 dBuUnbalanced: +15 dBVFrequency Response: 35 Hz to 50 kHz (+/- 1.5 dB)*THD+N: *measured at compressor threshold level equaling 4 W RMS output power<0.1% (@ 1 kHz)* <0.5% (50 Hz to 20 kHz)* Noise:<-80 dB (below 20 W RMS)Compressor: Threshold 6 dB below rated output, automatic adjusting attack and releaseCMRR: 55 dB (50 Hz to 120 Hz)Output Power:20 W RMS @ 70 V or 100 VAmbient Operating Environment:0?? C to 30?? C Max; 20?? C RecommendedInputs (2)+4 dBu balanced on detachable terminalblock; ???10 dBV unbalanced phono jackInput Impedance:10 kΩ (balanced bridging); 10 kΩ (unbalanced)Gain:Off to +3 dB (adjustable)Outputs (2):+4 dBu balanced on plug-in terminal block; ???10 dBV unbalanced phono jackFilters (3):Independently adjustableFrequency Range:15 Hz to 200 Hz, 150 Hz to 2 kHz, 1.5 kHz to 20 kHz (adjustable) (switch-selectable ranges)Boost/Cut Amplitude:??15 dB adjustableBandwidth:0.04 octave to 1.5 octave (adjustable)Freq. Response (filters flat):10 Hz to 20 kHz (+/- 0.25 dB)THD+N:<0.005%Noise:<-90 dB (below +4 dB)CMRR:50 dB @ 100 Hz (balanced input)Power Requirement:GROUND-REFERENCED, 24 Vdc @ 120 mADimensions:Height:1.42 in. ? 3.61 cmWidth:3.25 in. ? 8.26 cmLength:5.66 in. ? 14.38 cmAmbient Operating Environment:0 C to 50 C