Unison Research Simply Phono Valve Phono Stage

Features: This unit can be powered from some Unison amps, otherwise separate power supply is needed

While phono preamps with valves are becoming increasingly common, not all of them offer stunning performance within their respective price classes. The Unison Research Simply Phono is simply that—an outstanding tubed phono stage that offers incredible performance for the price. The Simply Phono is also the most logical choice to match with Unison Research amplifiers, although it works perfectly in any quality hi-fi system.

The Simply Phono is an all-tube phono pre-amplifier. It employs four ECC83 (12AX7) double triodes, arranged so the first two tubes act in parallel as a maximum gain stage, implementing a particular configuration called “ionic bias”, in order to improve performance. The RIAA equalization network is a completely passive solution, and premium components have been selected throughout to deliver truly high-end characteristics. 

The Simply Phono can accomodate both Moving Magnet (MM) and mid-to-high output Moving Coil (MC) cartridges, and features switchable impedance settings for optimum load matching. Due to its high-end specifications, the Simply Phono is a great addition to systems built around Unison Research's valve amplifiers as well as other non-Unison Research designs.

Specifications

Type : Stereo Phono Valve preamplifier

Classe: pure A class

RIAA : passiva +/- 0.2 dB ( 20 Hz / 20 KHz )

Output Impedance: 800 ohm.

Uscita: 1 x line

Gain : 52 dB

Total Harmonic Distortion (THD): 0.4 % at 1 volt output

Signal to Noise Ratio (S/N): – 72 dB

Inputs: 1 x fonorivelatore MM o MC

Input Impedance: 47 Kohm – 100 – 50 – 22 ohm / 100 pF (modifiable)

Feedback factor: 0 dB

Valves: 4 x ECC83 / 12AX7

Power Supply: externel

Dimension: 140 x 290 x h 105 ( mm )

Net Weight: 3 Kg (including power supply)