Unison Research Preludio Integrated Valve Amplifier

Unison Research Preludio Integrated Valve Amplifier

Free UK Delivery

In Stock
On Demo

* Required Fields



Unison Research Preludio Integrated Valve Amplifier

The Preludio is an integrated valve amplifier and features the same superlative technological philosophies and compelling sound that Unison Research has become renowned for. 

The Preludio uses double triode ECC82 valves to give the unit's pre and power amplification components a truly warm sound, complete with every rich and dynamic detail left intact. Unison Research has worked meticulously on the output stage design, which is based around two high-quality KT88 tubes. Every element of the Preludio has been designed to reflect the quality of sound that Unison Research refuse to compromise on, from the internal circuitry down to the volume knob, premium design and premium sound is at the forefront of this amplifiers design philosophy.

Who is Unison?

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.

 Output Stage  Single Ended Ultraliner A Class
Output Power (per-channel)  14W 
 Output Impedance 6Ω  
 Input Impedance 47kΩ 
 Feedback Factor 10dB 
 Valves  2 x 6550/KT88
2 x ECC82 (12AU7)
Inputs 4 x Line
1 x Tape 
 Outputs 1 x Tape 
1 x Subwoofer 
Frequency Response  15Hz - 50kHz 
 Power Consumption 200W max 
    Dimensions in cm (W x D x H)    37.5 x 40 x 18
Net Weight 18kg

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.

Press & Awards