1 in stock
The Reference 75 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 will transport you into the musical performance unlike any other comparable amplifier.
About this product
Fantastic condition trade-in Audio Research REF75 in Silver Finish. Unit comes in original box with power cord and printed owner’s manual.
Unit is rated 8/10 for very minor cosmetic wear consistent with age (see photos).
|Power output||75 watts per channel continuous from20Hz 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 taps||8 ohms, 4 ohms.|
|Output regulation||Approximately 1.0dB 8 ohm load to open circuit.|
|Overall negative feedback||15dB|
|Damping factor||Approximately 8|
|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.|
|Tube complement||(2) Matched pairs KT120 – Power Output; (2) 6H30 Driver.|
|Other||Output polarity: Non-inverting. Balanced input pin 2+ (IEC-268).|
|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.|
Please call 734.662.3595 and ask for Richard if you have any questions about this product. We make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.