audio research
D-160

Description
Tube stereo power amplifier.

Introduced
1982

Discontinued
?

Revisions
D-160B

Options
-

MSRP (US new retail)
D-160: $4,450. Later increased to $5,000.
D-160B: $6,000

Specifications

Power output 160 watts per channel minimum continuous (both channels operating) at 16 ohms from 25Hz to 20kHz with less than 0.5% total harmonic distortion. Typically below .005% at 1 watt.
Approximate actual power available per channel at "clipping" (both CH. OP, 1kHz): 200 watts
Power bandwidth (-3dB points) 12Hz to 50kHz
Frequency response  
Input sensitivity 1.2V RMS for rated output (adjustable)
Input impedance 75Kohms, nominal at maximum gain
Output taps  
Output regulation Approximately .5dB, 16 ohm load to open circuit
Overall negative feedback 18.5 dB
Damping factor Approximately 20
Distortion Intermodulation distortion: Less than .5% at 1dB below rated output (136V p to p, 16 ohms) (SMPTE method)
Slew rate 15V/µs
Rise time 5 µs
Hum & noise Better than 90dB below rated output 20kHz bandwidth unweighted
Power supply energy storage 500 joules
Power requirements 105-125VAC 60Hz (210-250VAC 50Hz) 1500 watts maximum
500 watts at "idle"
800 watts at rated power
Tube complement (1) 12AX7, (5) 6922, (4 matched pairs) 6550, (2) 6550, (2) 12AT7, (2) 12BH7
Other  
Dimensions 19" (48 cm) W (standard rack panel) x 10½" (26.7 cm) H x 21 3/8" (54.3 cm) D (front panel back). Handles extend 1 5/8" (4.1 cm) forward of the front panel.
Weight 105 lbs. (48 kg) Net; 120 lbs. (55 kg) Shipping

Reviews

Number 29 (D-160: Consideration)
Vol. 7 No. 3 (D-160B)

Pictures

D-160:

D-160B: