Audio Research Reference 80S

€21,685.00

The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package.

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The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package.

The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package.

PRODUCT DETAILS

Technical Specifications

POWER OUTPUT- 70 watts continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 140 watts (33 watts in Triode mode) per channel, below 0.04% at 1 watt (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 critical) 

POWER BANDWIDTH- (-3dB points) 7Hz to 68kHz 

FREQUENCY RESPONSE- (-3dB points at 1 watt) 0.7Hz to 94kHz 

INPUT SENSITIVITY- 1.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms); 0.7V RMS SE for rated output. 

INPUT IMPEDANCE- 300K ohms Balanced, 75K ohms Single Ended 

OUTPUT POLARITY- Non-inverting. Balanced input pin 2+ (IEC-268) 

OUTPUT TAPS- 16 ohms, 8 ohms, 4 ohms 

OUTPUT REGULATION-
Approximately 1.0dB 16 Ohm Load to Open Circuit
(Damping factor approximately 8) 

OVERALL NEGATIVE FEEDBACK- 15dB 

SLEW RATE- 10 volts/microsecond 

RISE TIME- 4.0 microseconds 

Physical Specifications

POWER REQUIREMENTS-
105-130VAC 60Hz (210-250VAC 50Hz) 420 watts at rated output, 
280 watts in Triode mode, 221 watts at “idle”, 3.6 watts off Units for Japan: 100VAC 50/60Hz 

TUBES REQUIRED- 2 matched pair KT150 (Power output V1-V4); 2 6H30 (Gain stage V5, V6)

DIMENSIONS-
Width
 18.5” (47 cm) chassis; 19.0” (48.26 cm) faceplate.
Height 10.5” (26 cm) 
Depth 18.5” (47 cm) 
With handles & connectors: 21” (53.3 cm) 

WEIGHT- 62 lbs. (28.2 kg) Net; 73 lbs. (32.7 kg) Shipping.

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