audio research
D-110

Description
Solid state stereo power amplifier.

Introduced
1979 (?)

Discontinued
1980

Revisions
D-110B (1979)

Options
-

MSRP (US new retail)
D-110: $2,450
D-110B: $2,450. Later increased to $3,250

Specifications

Power output 110 watts per channel minimum RMS (both channels operating) at 8 ohms from 1 Hz to 20 kHz with less than .1% total harmonic distortion (.25% - D-110). Typical .02% at 1 kHz. Typical 220 watts into 4 ohms, 130 watts into 8 ohms, 70 watts into 16 ohms at clipping (D-110B - both channels operating).
Power bandwidth  
Frequency response .05 Hz to 100 kHz (-3 dB), 1 W, 8 ohms.
Input sensitivity 1.5 Volts for rated output.
Input impedance 30K ohms (D-110)
60K ohms (D-110B)
Output taps  
Output regulation  
Overall negative feedback  
Damping factor More than 500 (1 Hz to 20 kHz)
Distortion Intermodulation distortion: Less than 0.1% at rated output (80Vp-p) and load, SMPTE method, 60 Hz and 7 kHz, 4:1
Slew rate  
Rise time  
Hum & noise Less than 50 microvolts equivalent input noise with shorted inputs (20 Hz to 20 kHz). Typically 95 dB below rated output.
Power supply energy storage  
Power requirements 105-120/210-240 VAC 50/60 Hz, 1500 watts maximum momentary, 550 watts @ rated power, 300 watts @ idle
Other Output offset: Less than 10 mV.
Protection components: Thermal AC switch, AC line fuse, DC supply fuses, speaker line fuses.
Dimensions 19" (48 cm) W x 17 1/4" (43.6 cm) D x 10 1/2" (26.5 cm) H rack mount panel. Handles extend 1 5/8" (4.1 cm) forward of the front panel.
Weight 92 lbs. (42 kg) Net, 107 lbs. (49 kg) Shipping.

Reviews

Number 14 (D-110: Full Review), Number 15 (D-110B: Full Review)

Pictures

D-110:

D-110B: