



Unison Research Absolute 845
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.

Unison Research Absolute 845 Dual mono Stereo Integrated Valve Amplifier
- Dual Mono Design: Each channel operates independently, ensuring superior stereo separation and reduced crosstalk.
- Single-Ended Parallel Class A Output: Delivers approximately 40 watts per channel, providing a warm and detailed sound signature.
- Premium Valve Complement: Equipped with 4 x 845 power tubes, 6 x ECC82, and 2 x ECC83 preamp tubes, known for their rich tonal qualities.
- Wide Frequency Response: Offers a frequency range of 20 Hz to 30 kHz, capturing the full spectrum of audio details.
- Versatile Connectivity: Features 5 line-level inputs, 2 tape inputs, and bi-wiring speaker outputs compatible with 4–8 ohm loads.
- Robust Construction: Weighs approximately 90 kg (199 lbs), ensuring stability and durability, with dimensions of 80 x 60 x 28 cm.
single ended parallelo A class
40 watt / channel
4 – 8 Ohm
5 line, 2 tape
47 kOhm
2 tape, loudspeakers bi-wiring
10 dB
20 Hz – 30 kHz
4 x 845, 6 x ECC82, 2 x ECC83
700 VA
80 x 60 x h. 28 cm; 31,7 x 23,8 x 11 inches
90Kg; 199 lbs