Audio Research Reference 75SE Vacuum Tube Stereo Power Amplifier
Audio Reference 75SE Vacuum Tube Stereo Power Amplifier
The Reference 75 SE is a stunning amplifier in every way – performance, styling and reliability combined to elevate your music listening to a new experience. Capable of controlling a wide variety of speakers, the Reference 75 SE will transport you into the musical performance unlike any other comparable amplifier. At the heart of the Reference 75 SE is decades of proven Audio Research vacuum tube technology, a legacy unrivaled by any other manufacturer of tube electronics. Developed through hundreds of hours of critical listening, the carefully selected components comprising the Reference 75 SE combine to provide an amplifier which transcends traditional hi-fi, instead relaying music with realism and tangibility.
Reference 75SE Specifications:
POWER OUTPUT 75 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.6% at 75 watts, below 0.05% at 1 watt. Approximate actual power available at ‘clipping’ 76 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) 7Hz to 60kHz. FREQUENCY RESPONSE (-3dB points at 1 watt) 0.7Hz to 75 kHz. INPUT SENSITIVITY 1.4V RMS BAL for rated output. (25 dB Bal gain into 8 ohms.) INPUT IMPEDANCE 300K ohms Balanced. OUTPUT POLARITY Non-inverting. Balanced input pin 2+ (IEC-268). OUTPUT TAPS 8 ohms, 4 ohms. OUTPUT REGULATION Approximately 1.0dB 8 ohm load to open circuit (Damping factor approximately 8). OVERALL NEGATIVE FEEDBACK 15dB. SLEW RATE 10 volts/microsecond. RISE TIME 4.0 microseconds. HUM & NOISE Less than 0.06mV RMS – 112dB below rated output (IHF weighted, input shorted). POWER SUPPLY ENERGY STORAGE Approximately 520 joules. POWER REQUIREMENTS 105-125VAC 60Hz (210-250VAC 50Hz) 410 watts at rated output, 500 watts maximum, 230 watts idle. TUBES REQUIRED 2 – Matched pair KT150 – Power Output; 2 – 6H30 Driver. DIMENSIONS 19″ (48.3 cm) W x 8.75″ (22.2 cm) H x 19.5″ (49.5 cm) D. Handles extend 1.5″ (3.8 cm) forward. WEIGHT 47 lbs. (21.3 kg) Net; 63 lbs. (28.6 kg) Shipping.
Black, Natural (Silver)
Audio Research Reference 75SE
2 Channel Power Amplifier