Unison Research Sinfonia Valve Integrated Amplifier

Unison Research Sinfonia Valve Integrated Amplifier

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Unison Research Sinfonia Valve Integrated Amplifier

With last years launch of the Performance, Unison Research re-confirmed its position as one of the finest designers of single-ended valve amplification. The new Sinfonia integrated amplifier takes the beautiful design ethic and parallel single-ended technology of the Performance and reduces it in both size and cost to result in a gem of an amplifier. Handmade in Italy and featuring gorgeous solid wood and stainless steel build and 30 watts per channel from two pairs of KT88 power valves, it is a prime example of the amazing value for money products that Unison has produced throughout the years and is sure be a success with audiophiles everywhere.

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 Dual-Mono Stereo
Integrated Valve Amplifier 
 Output Stage Single-Ended Parallel
Ultra-Linear Class A 
 Output Power 25W 
 Inputs 4 x Line
1 x Tape 
 Input Impedance 47kΩ
Outputs  1 x Tape
1 x Subwoofer
Loudspeakers (bi-wiring) 
 Output Impedance 4 - 8Ω
 Feedback Factor 14dB 
Frequency Response  20 - 30,000Hz 
Valves  4 x 6550 / KT88
2 x ECC82
2 x ECC83 
Remote Control  IR control of inputs and volume 
Power Consumption 500W (max.)
Dimensions in cm (W x D x H) 44 x 42 x 21
Net Weight 55lbs

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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