Unison Research · Phono Stages
Simply Phono
Simply Phono is a compact valve phono preamplifier for MM and high-output MC cartridges, with selectable loading and an external power supply.
fig. 01 · phono stages
Simply Phono

From Unison Research
Simply Phono is a tubed phono stage built to pair naturally with Unison Research amplifiers while still fitting other hi-fi systems. It uses 4 ECC83 valves, pure Class A operation, passive RIAA equalization, and adjustable input loading for MM or high-output MC cartridges.
Specifications
| Type | Stereo Phono Valve preamplifier |
|---|---|
| Class | pure class A |
| RIAA | passiva +/- 0.2 dB ( 20 Hz / 20 KHz ) |
| Output impedance | 800 ohm. |
| Outputs | 1 x line |
| Gain | 52 dB |
| THD | 0.4 % at 1 volt output |
| Signal to noise ratio | - 72 dB |
| Inputs | 1 x fonorivelatore MM or High Output MC (>2mV) |
| Input impedance | 47 Kohm - 100 - 50 - 22 ohm / 100 pF (modifiable) |
| Feedback factor | 0 dB |
| Valves | 4 x ECC83 / 12AX7 |
| Power supply | external |
| Dimensions | 140 x 290 x h 105 ( mm ) |
| Weight | 3 Kg (including power supply) |
| Product type | valve phono preamplifier |
