Unison Research · Power Amplifiers

Reference

Reference is a mono valve power amplifier using 845 output valves in a double-parallel single-ended circuit with RCA and XLR inputs.

fig. 01 · power amplifiers

Reference

Unison Research Reference
fig. 01 · Referencephotograph · Unison Research

From Unison Research

Reference is Unison Research's monoblock valve power amplifier, built around 4 845 output valves with ECC82 and ECC83 driver valves. Its double-parallel single-ended circuit is rated at 80 W, with 4 ohm and 8 ohm speaker outputs, RCA and XLR inputs, and bi-wiring terminals.

Specifications

TypeMono Valve Power Amplifier
Output stagedouble parallel single-ended
ClassA pura
Valves4 x 845, 1 x ECC82, 1 x ECC83
Output power80 watt
Frequency response20 Hz - 30 kHz
Feedback factor14 dB
Output impedance4 Ohm e 8 Ohm
Outputsloudspeakers bi-wiring
Inputs1 x RCA , 1 x XLR
Input impedance47 kOhm RCA , 10 kOhm XLR
Power consumption400 VA approx.
Dimensions49 cm x 77.5 cm x H 28,5 cm
Weight70Kg 155 lbs
Product typevalve monoblock power amplifier
All 15 specificationsFewer specifications
Reference · Unison Research · Heartbeats & Headshells