Unison Research Simply Phono Phonostage

Brand: Unison Research

Simply Phono Phonostage


As the vinyl hi-fi market continues to grow from strength-to-strength, Unison Research have decided to bring their expert valve knowledge to one of the often over-looked aspects of vinyl playback, phono pre-amplification. Phono stages are essential for taking the low output from a turntable and amplifying it to Line level, so modern amplifiers can deliver an optimised sound signal to your speakers. Sharing its name and appearance with an older model from the Unison Research range, the new Simply Phono boasts enhanced circuitry and an improved layout to deliver first-class audio.

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 accommodate 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.

In the UK the Simply Phono is supplied with the upgraded external power supply for improved performance.

The Simply Phono is available with a high quality cherry wood base (mahogany wood base is available to special order).


Key Features:

Pure Class A valve phono stage

Four ECC83 tubes used

MM and mid-high output MC cartridge compatible

Switchable impedance settings

Improved external power supply included as standard

Excellent complement to the valve amplifier range

High-quality Cherry Wood base


Technical Data:

Type: Pure Class A Valve Phono Stage

RIAA: Passive ±0.2dB (20Hz / 20kHz)

Output Impedance: 800Ω

Outputs: 1x Line (RCA pair)

Gain: 52dB

THD: 0.4% @ 1V output

Signal-to-Noise Ratio: -72dB

Inputs: 1x RCA Pair (MM or MC)

Input Impedance: Switchable - 47kΩ / 100Ω / 50Ω / 22Ω 100pF capacitance

Feedback Factor: 0dB

Valves: 4x ECC83 (12AX7)

Power Supply: External

Dimensions: 140 (W) x 290 (D) x 105 (H) mm

Weight: 3kg


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