Unison Research Preludio Integrated Amplifier
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 Unison Research Preludio Integrated AmplifierUnison Research Preludio Integrated Amplifier 

Unison Research Preludio Integrated Amplifier

  (2 Reviews)
£2,816.67 Exc. VAT |  |

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Unison Research Preludio Integrated Amplifier

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.

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
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
Average Rating (2 Reviews):  
Write a Review and share your opinions!

23 February 2020  | 

very impressive. This amp is audiophile quality. Music is truly lifelike. I had great success with black diamond telefunken tubes. Sounds gorgeous! I probably will never sell it.

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2 of 2 people found this review helpful.

beautiful sound
13 August 2017  | 

Bought this amplifier some weeks ago. Stunning valve sound and enough volume with efficient speakers (90dB)
Don't expect amusive bass though.
For my small room it does not need more power. Would buy it again anytime.

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7 of 7 people found this review helpful.

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