Audio Research DSi200 This listing is marked as sold.

Description
Power output 200 watts per channel into 8 ohms. 300 watts per channel into 4 ohms, both channels driven, 1% THD.
Power bandwidth
Frequency response (-3dB points at 1 W) 5Hz to 55 kHz.
Input sensitivity 0.93V RMS for rated output. (32.7 dB Gain) single-ended or balanced.
Input impedance 60K ohms single-ended, 120k ohms balanced differential.
Output taps
Output regulation 0.06dB 8 ohm load to open circuit
Overall negative feedback
Damping factor 167
Distortion
Slew rate
Rise time
Hum & noise 800 microvolts RMS (94dB below rated output IHF A-weighted.)
Power supply energy storage 160,000 uF total.
Power requirements 100-125VAC 60Hz (200-250VAC 50 Hz) 445 watts at rated output (200WPC 8 ohms) 735 watts at 300WPC 4 ohms, 38 watts idle. Standby 1 watt.
Other Maximum input: 20V RMS BALANCED, 10V RMS SE
Output polarity: Non-inverting from single-ended inputs. Balanced pin 2+ (IEC-268).
Inputs: (5): BAL 1, BAL 2, CD(SE), Tuner(SE), Aux(SE).
Controls: Volume (104 steps), Select Input. Push Buttons: Power, BAL/SE, Mono, Mute.
Dimensions 19″ (480 mm) W(standard rack panel) x 5.25″ (133 mm) H x 14.25″ (362 mm) D (front back panel). Optional handles extend 1.5″ (38 mm) forward of the 1/4″ thick front panel. Output connectors extend 0.9″ behind rear panel.
Weight 37.2 lbs. (16.9 kg) Net; 43.3 lbs. (19.7 kg) Shipping.