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Unison Research Phono One tube phono preamplifier

£1,494.00

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Phono One was for many years one of the most appreciated models in the Unison Research catalogue. It has now been completely renewed and improved, although its look of elegant and timeless simplicity remains the same. An all-tube design with elastic suspension, it uses five ECC83 double triode valves in parallel configuration to give excellent low noise and distorsion characteristics. Cross-talk also is extremely low at -90dB. Overall gain is 54dB, and switchable resistance and capacitance loading makes it suitable for all MM and most MC cartridges. The sound is pure, with supreme natural detail and great clarity. Truly a top class phono stage.

ype: Stereo Phono Valve preamplifier
Class: pure A
RIAA : passive +/- 0.1 dB (20 Hz / 20 KHz)
Output Impedance: 800 ohm.
Outputs: 1 x line
Gain : 54 dB
Total Harmonic Distortion (THD): 0.1 % at 1 volt output
Signal to Noise Ratio (S/N): - 80 dB
Inputs: MM and MC
Input Impedance: 47 Kohm - 100 - 50 – 22 ohm / 100 – 200 – 320 – 420 pF
( modifiable ) Feedback factor: 0 dB. Valves: 5 x ECC83 / 12AX7
Dimension: 37.3 x 5.84 x h 24.63 cm. Net Weight: 3.6 Kg circa
(including power supply)

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