Audio Research DS225 Owner's manual - page 8
Specifications
POWER OUTPUT: 225 watts per channel into 8 ohms,
1% THD; 360 watts per channel into 4 ohms, both
channels driven.
FREQUENCY RESPONSE: (-3dB points at 1 watt) 5Hz to
55 kHz.
INPUT SENSITIVITY: 2.15V RMS for rated output (26.0dB
Gain) single-ended or balanced.
INPUT IMPEDANCE: 150K ohms single-ended, 300K ohms
balanced differential.
OUPUT POLARITY: Non-inverting from single-ended
inputs. Balanced pin 2+ (IEC-268).
OUTPUT REGULATION: 0.06dB 8 ohm load to open
circuit (Damping factor 167).
OUTPUT CURRENT: 15 amps peak at protective shut-
down.
SLEW RATE: 5 volts/microsecond. (20% maximum duty
cycle).
RISE TIME: 5.0 microseconds.
HUM & NOISE: 300 microvolts RMS (103dB below rated
output IHF A-weighted).
POWER SUPPLY CAPACITANCE: 160,000 uF total.
POWER REQUIREMENTS: 100-125VAC 60Hz (200-
250VAC 50Hz) 488 watts at rated output (225WPC
8 ohms), 758 watts at 360WPC 4 ohms, 35 watts idle,
Standby 1 watt.
DIMENSIONS: 19" (48 cm) W (standard rack panel) x
5
1
/
4
" (13.3 cm) H x 14
1
/
4
" (36.2 cm) D (front panel back).
Optional handles extend 1
1
/
2
" (3.8 cm) forward of the
1
/
4
" thick front panel. Output connectors extend 0.9" be-
hind rear panel.
WEIGHT: 34.9 lbs. (15.8 kg) Net; 41 lbs. (18.6 kg)
Shipping.
Specifications subject to change without notice.
© 2010 Audio Research Corporation.
5
Model DS225