Purchased from Second owner Audio Research D200 110 watts per channel solid state amp. Very liquid mid range with extended highs, sound better then newer generation AR SS amps. Purchased for second system and the Mrs. did not agree on the use of the room, hence the sale. Great amp at at great price. A REAL value. Looks new. Score of 8 based for age. Please call if you would like to discuss your offer. 619 459 5900. Please consult internet for all info regarding this great amp. No original box but will be professionally packed.
From The ARCDB site,
110 watts per channel into 8 ohms, 200 watts per channel into 4 ohms.
Power bandwidth (-3dB points) DC to 150 kHz into 8 ohms.
Input sensitivity 1.5V RMS for rated output (25.5 dB gain) unbalanced or balanced.
Input impedance 150K ohms unbalanced, 300K ohms balanced differential.
Output regulation 0.07dB 8 ohm load to open circuit
Overall negative feedback
Damping factor 130
Slew rate 50V/µs
Rise time 1.7 µs
Hum & noise Less than 40 µV RMS (117dB below rated output IHF A-weighted).
Power supply energy storage 124,000 µF total
Power requirements 105-125VAC 60Hz (210-250VAC 50Hz) 400 watts at rated output (110WPC 8 ohms), 640 watts at 200WPC 4 ohms, 800 watts maximum, 105 watts idle.
Other Input polarity: Non-inverting at unbalanced inputs. Balanced pin 2+ (IEC-268).
Dimensions 19" (48 cm) W (standard rack panel) x 5¼" (13.3 cm) H x 11 7/8" (30.2 cm) D (front panel back). Handles extend 1 ½" (3.8 cm) forward of the 3/8" thick front panel. Output connectors extend 1" behind rear panel.
Weight 32.5 lbs. (14.8 kg) Net; 45 lbs. (20.5 kg) Shipping.