5 out of 5
Unison Research Phono One Valve Phono Stage
Free UK Delivery
Discontinued
Unison Research Phono One Valve Phono Stage
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 a parallel configuration to give excellent low noise and distortion characteristics. Cross-talk also is extremely low at -90dB. Overall gain is 54dB, and switchable resistance and capacitance loading make 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.
Who is Unison Research?
Unison Research, founded in 1987 by a group of audiophile technicians, is a prestigious Italian manufacturer of valve-based premium high fidelity audio components. Specialising in the design and construction of amplifiers, CD players, headphone amps and phono stages that boast not only impeccable, effortlessly rich sound but also an artistic visual design.
| Type | Pure Class A valve phono stage |
| RIAA | Passive ± 0.1dB (20Hz / 20kHz) |
| Output Impedance | 800Ω |
| Outputs | 1 x Line (RCA) |
| Gain | 54dB |
| THD | 0.1% @ 1V output |
| Inputs | 1 x RCA (for MM or MC) |
| Input Impedance | 22, 50, 100 or 47kΩ (switchable) |
| Input Capacitance | 100, 200, 320 or 420pF (switchable) |
| Feedback Factor | 0dB |
| Valves | 5 x ECC83 (12AX7) |
| Power Supply | External |
| Dimensions (W x H x D) | 373 x 58.4 x 246.3mm |
| Net Weight | 3.6kg (incl. PSU) |
Pure Class A valve phono stage
UK Delivery
Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £99*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days
UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days.
Local Delivery
Certain manufacturers disallow mail order for their products, however a local delivery may be possible.
We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.
Click & Collect
We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.
Please use this link to find more detailed delivery information or contact us for more details
