Welcome to Peak HiFi

Peak HiFi is a well established business and was formed in 2004 as audio consultants specialising in high quality audio equipment, with a particular fondness for stereo and analogue equipment, we are particularly enthusiastic for classic turntables such as the Garrard 301 and the Garrard 401. Peak HiFi offers a select range of new and approved used equipment, accessories and services. Reconditioned Garrard 301 and 401 units are available as well as beautifully engineered plinths for these decks. We welcome you to visit us at our premises in the Peak District and to take advantage of our relaxed surroundings and two demonstration rooms where we can demonstrate all of the equipment and assist you with your selection. Please call us to fix an appointment.

search / a-z list


Product Categories

Guitar Accessories (7)
Used and Ex Demonstration (13)
AV Systems/Custom Installations (2)



Home > Products > Amplifiers > Unison Research Valve Series > Unison Research Preludio

Unison Research Preludio

Unison Research Preludio
In stock


Preludio is an integrated tube amplifier that maintains the distinctive technical elements, sound characteristics and stunning looks that Unison Research is known for. It bears an obvious resemblance to the higher-end Sinfonia and Performance amplifiers, but maintains a very appealing price for a product of such prestige.

Using double triode ECC82 valves the Preludio’s pre and power amplification gives an exclusively valve amp performance that delivers a natural and dynamic presentation.

Special attention has been dedicated to the design of the output stage, which is based on two KT88 tubes. Tried and extensively tested, the bias setting of the KT88s ensures the best sound performance even after many years, and also contributes to minimising the time it takes for the tubes to warm up to optimal temperature.

Every part of the Preludio has been thoroughly thought out from the circuit boards to the control knobs to offer a premium design and a premium sound. For example, the top-plate is not just good looking, it's made from amagnetic stainless steel with low heat conduction to stop the heat generated by the KT-88s interfering with the internal circuitry.

Available in Cherry or Mahogany.


Key Features:

  • Stylish tube integrated amplifier
  • Dedicated pre, power and output stages per channel
  • Tube-based Class A amplification
  • 5 gold platted inputs
  • High quality powered design
  • KT88 tubes in the output stage
  • RC2 remote included
  • Premium Cherry Wood finish*


Technical Data:

  • 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 (W x D x H): 37.5 x 40 x 18cm
  • Net Weight: 18kg


*Preludio with Mahogany Wood finish is available to special order.

Product Code: URPR

Join Our Email List

Copyright © Peak HiFi All rights reserved.
Terms & Conditions | Privacy Policy | Accessibility Statement
Sitemap | A-Z Product Index | Built by www.1creative.co.uk using Valid HTML

Skip navigation Home page Site Map Contact us Top of the page Accessibility Statement Products Latest News Size Guide Photo Gallery Affiliates Links About Us Help