Mono Tube Power Amplifier
Many customers, already familiar with our the current products, have expressed the desire to see a new model in the catalog: an all-tube, pure Class-A power amplifier, with a power output much higher than anything so far seen from Unison Research.
With the aim of satisfying this requirement, the Unison Research team began to evaluate the possibility of producing an amplifier which would incorporate the best of what we have learned from many years of experience with valve amplifiers. The idea was certainly an ambitious one: to design a single-ended amplifier with twice the output power of the most powerful product in the catalogue, and make it truly worthy of inclusion amongst models that have made the Unison famous throughout the world.
Since this demanding project was to be developed entirely by the Unison team, it was necessary to make several important decisions concerning the overall design. Our first realization was that the Reference power amplifier needed to consist of a separate monoblock pair of amplifiers.
Type: Mono Valve Amplifier
Output Stage: single-ended parallel, Class-A
Output power: approx. 70/80 watt
Valves: 4 x 845, 1 x ECC82, 1 x ECC83
Frequency Response: 20 Hz – 30 kHz
Feedback factor: 14 dB
Output Impedance: 4 Ohm e 8 Ohm
Outputs: loudspeakers bi-wiring
Inputs: 1 x RCA , 1 x XLR
Input Impedance: 47 kOhm RCA , 10 kOhm XLR
Power Consumption: 400 VA approx.
Dimensioni (mm.): 490 x 775 x 285
Net Weight: 70/80 kg
