audio research
D240

Description
Solid state stereo power amplifier.

Introduced
1991

Discontinued
?

Revisions
D240 MKII (1992)

Options
-

MSRP (US new retail)
$2,995

Specifications

D240 MKII:

Power output 120 watts per channel into 8 ohms, 240 watts per channel into 4 ohms
Power bandwidth 8Hz to 60kHz (-3dB points)
Frequency response  
Input sensitivity 1.6V RMS for rated putput (25.8dB gain) unbalanced or balanced
Input impedance 150k ohms normal or invert, 300k ohms balanced differential
Output taps  
Output regulation  
Overall negative feedback 7.7dB
Damping factor 170
Distortion  
Slew rate 50 volts/microsecond
Rise time 1.5 microseconds
Hum & noise 106dB below rated output IHF A-weighted
Power supply energy storage 144,000 µF
Power requirements  
Other Input Polarity: Non-inverting at normal inputs. Balanced pin 2+.
Dimensions 19" W x 5 1/4" H x 11 5/8" D
Weight 38 lbs.

Reviews

Vol. 14 No. 12

Pictures

D240:

D240 MKII: