audio research
D-350

Description
Solid state stereo power amplifier.

Introduced
1977

Discontinued
1980

Revisions
D-350B (1978)

Options
-

MSRP (US new retail)
D-350: $2,785.
D-350B: $3,500. Later increased to $4,400

Specifications

Power output 350 Watts per channel minimum RMS (both channels operating) at 8 Ohms from 20 Hz to 20kHz with less than .25% total harmonic distortion.
Power bandwidth  
Frequency response  
Input sensitivity 1.35V RMS for rated power and load.
Input impedance 30Kohms (nominal)
Output taps  
Output regulation  
Overall negative feedback  
Damping factor  
Distortion Intermodulation distortion: Less than .1% at rated output (150V p-p) and load (SMPTE method).
THD and IMD decrease with decreasing output (typically less than .02% at 1 watt per channel RMS).
Slew rate  
Rise time  
Hum & noise Wide-band, unweighted, more than 110dB below 350 watts at 8 ohms - power line components (hum) 90dB below 350 watts at 8 ohms.
Power supply energy storage  
Power requirements 105-120/210-240 VAC, 50/60Hz, 1500 watts maximum.
Other  
Dimensions 19" (48 cm) W x 10 1/2" (26.5 cm) H x 17 1/4" (43.6 cm) D (front panel back). Handles extend 1 5/8" (4.1 cm) forward of front panel.
Weight 105 lbs (47 kg) Net, 120 lbs. (54 kg) Shipping

Reviews

Pictures

D-350:

D-350B: