REF 110 vs Reference 75
The Reference 75's power @ 8ω is 75W against the REF 110's 110W, its signal-to-noise 112 dB against 106 dB, its damping factor 8 against 12, and its thd 0.600% against 0.300%.
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersTube AmplifiersDiscontinued
About the REF 110
The Audio Research REF 110 is a high-end stereo tube power amplifier featuring 110 watts per channel continuous output from 20Hz to 20kHz. It uses a push-pull, fully balanced circuit with two matched pairs of 6550C output tubes per channel and a hybrid input stage with direct-coupled JFETs and 6H30 gain and cathode follower tubes. The output stage combines ultralinear and partially cathode-coupled topology for superior sound quality. It offers balanced inputs only, with 300k ohm input impedance and 1.8V RMS sensitivity for rated output. The amplifier includes taps for 4, 8, and 16 ohm speaker loads and features two 12V triggers for remote turn-on. Cooling is provided by two small fans with adjustable speed. The REF 110 is noted for its wide frequency response (0.6Hz to 90kHz), low distortion (0.3% at rated power), and a dynamic, detailed sound with excellent bass control and a wide soundstage. It weighs about 67.4 lbs and measures 19"W x 8.75"H x 19.5"D. The amplifier is no longer in current production but remains highly regarded in audiophile circles.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 110W @ 8Ω
- Damping Factor
- 12
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.8V RMS
- Input Impedance
- 300000Ω
Analog Output
Analog signal output specifications
- THD
- 0.300%
- SNR
- 106 dB
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.6 × 222.25 × 495.3 mm (W × H × D)
- Weight
- 30.7 kg (68 lbs)
Key Specifications
Power: 110W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions