Audio Research Reference 210 Monoblocks

Monoblock Amplifiers
R 95,000.00
Posted on 2021/04/13

Manufacturer’s specs

Description
POWER OUTPUT
210 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 210 watts, below .02% at 1 watt. Approximate actual power available at “clipping” 240 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH
(-3dB points) 10Hz to 150kHz
FREQUENCY RESPONSE
(-3dB points at 1 watt) 0.5Hz to 240 kHz.
INPUT SENSITIVITY
1.7V RMS Balanced for rated output. (27 dB gain into 8 ohms.)
INPUT IMPEDANCE
200K ohms Balanced
OUTPUT TAPS
4, 8 and 16 ohms
OUTPUT REGULATION
Approximately 0.6dB ohm load to open circuit
OVERALL NEGATIVE FEEDBACK
12dB
DAMPING FACTOR
Approximately 14
DISTORTION

SLEW RATE
40V/µs
RISE TIME
1.2 µs
HUM & NOISE
Less than 0.3mV RMS – 106dB below rated output (IHF-A weighted, input shorted, 16 ohm output)
POWER SUPPLY ENERGY STORAGE
Approximately 787 joules
POWER REQUIREMENTS
105-130VAC 60Hz (260-250VAC 50Hz) 680 watts at rated output, 950 watts maximum, 380 watts at “idle”, .15 watts off.
TUBE COMPLEMENT
(3 matched pairs) 6550C power output, (1 matched pair) 6550C driver, 2 – 6N1P gain stage and regulator driver, 1 6550C regulator.
DIMENSIONS
19″ (483 mm) W x 8 ¾” (222 mm) H x 19½” (495 mm) D. Handles extend 1½” (38 mm) forward.
WEIGHT
74 lbs. (33.6 kg) Net; 89 lbs. (40.4 kg) Shipping.

210
1
4
222
483
495
33.6
Valve