Absolute 845

Integrated Amplifiers

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The popular American magazine The Absolute Sound first picked the Absolute 845 as the best product of 1994. After more than 20 years, the Absolute is still ranked first overall in tube amps with a score higher than any other amplifier. No other audio product has remained at the top of its class for so long. The Absolute 845 is not only the story of Unison Research, it is a significant piece of audio history in general, forever tied to the world of analog valves. In many ways, the Absolute is still unsurpassed.





  • Type: Dual mono Stereo Integrated Valve Amplifier
  • Stadio di usita: single ended parallelo A class
  • Output Power: 40 watt / channel
  • Output Impedance: 4 – 8 Ohm
  • Inputs: 5 line, 2 tape
  • Input Impedance: 47 kOhm
  • Outputs: 2 tape, loudspeakers bi-wiring
  • Feedback factor: 10 dB
  • Frequency Response: 20 Hz – 30 kHz
  • Valves: 4 x 845, 6 x ECC82, 2 x ECC83
  • Power Consumption: 700 VA
  • Dimension: 31,7 x 23,8 x 11 inches
  • Net Weight: 199 lbs

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