audio research
D-120

Description
Solid state stereo power amplifier.

Introduced
1980

Discontinued
?

Revisions
D-120 Revised (1981)

Options
-

MSRP (US new retail)
$1,795. Later increased to $2,195. Later decreased to $1,995.

Specifications

Power output 120 watts per channel (both channels driven) into 8 ohms with less than .25% THD from 10Hz to 20kHz. (200 watts per channel into 4 ohms; 140 watts per channel into 2 ohms)
Power bandwidth At rated output into 8 ohms:
0.6Hz to 100kHz (-3dB)
1.2Hz to 10kHz (-1 dB)
Frequency response 0.6Hz-150kHz at 1 watt into 8 ohms (-3 dB)
1.2Hz-75kHz at 1 watt into 8 ohms (-1 dB)
10.0Hz-20kHz at 1 watt into 8 ohms (±0.1 dB)
Input sensitivity 1.5 Volts RMS for rated output
Input impedance 60K ohms
Output taps  
Output regulation  
Overall negative feedback  
Damping factor 300 (10Hz to 20kHz)
Distortion Harmonic distortion: (1kHz) Less than .004% at 1 watt 8 ohms
IM distortion: Less than .035% at rated output. Less than .007% at 1 watt into 8 ohms
Slew rate 40 V/µs
Rise time 2 µs
Hum & noise  
Power supply energy storage 180 joules
Power requirements 150 watts at idle
450 watts at rated output
1000 watts maximum
Other  
Dimensions 19" (48 cm) W x 5¼" (13.4 cm) H (standard rack panel) x 10½" (26.5 cm) D. Handles extend 1 5/8" (4.1 cm) forward of front panel.
Weight 43 lbs (19.5 kg) Net, 10 lbs (23 kg) Shipping

Reviews

Number 23 (D-120 Revised: Consideration)

Pictures