About the brand

“High End Electronics born in Italy”

Unison Research was founded in 1987 by a group of passionate audiophiles led by Giovanni Maria Sacchetti. Born in 1945, Giovanni Maria Sacchetti devoted himself at an early age to the study and design of hi-fi systems, combining his interest in electronics with a passion for music inherited from his father, an expert pianist.

“This amplifier is more than just a nice tube integrated; it is a work of audio art. It’s an amplifier that should be put on a pedestal with a wonderful painting above it.” –  tonepublications.com

Teaching and designing amps for 25 years, Giovanni and his company have thrived and gained recognition as an experienced manufacturer of high performance and high quality amplifiers.

Focusing on hybrid and tube amplifier design, the company based in Italy continues to be a leader in the industry with a worldwide reputation for excellence. Our clients are always charmed and seduced by the beauty of the designs and the lush realism from these amps.

A good friend of mine used to say, “Not all recordings are equal, that’s why God made tube amps.” – positive-feedback.com

Unison Research:

Detailed information on individual models and technical data are best found directly with the manufacturer. We invite you to connect with them here. We urge you to request specific demonstration or discussion with CDF directly for all of your questions.


  • Hybrid -Integrated:
  • Unico Primo
  • Unico Nuovo
  • Unico Secondo
  • Unico 50
  • Unico 100
  • Pure Tube:
  • Simply Italy
  • Preludio
  • Triode 25
  • S6
  • Sinfonia
  • S9
  • Performance
  • Absolute 845
  • Preamplifiers:
  • Unico Pre
  • Reference Pre
  • Phono Pre:
  • Simply Phono
  • Phono One

Customer Reviews

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By the way, special thanks to Graeme for his caffeine fueled audio rants!
Not only do they have great entertainment value, they’re also spirited and come from the heart.
Maybe not always to everyone’s liking but I truly appreciated them. A great experience!

Fruitcake of the month

L. came home from work, put on his sweat pants, made himself a amaretto and coke with ice, went in the theater, sat down and stared at the blank screen for half an hour. Then he closed his jaw, smiled and said "boy that Jennifer did a great job, I…

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Overall Great Service

I want to thank all of you for your courteous, caring and overall great service. Have been listening to the new amps and they sound wonderful. They seem to be working perfectly. I am also quite impressed with the Luxman Dac. I'm looking forward to getting all my cd's downloaded to…

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Passion and motivation

I'd like to take moment to thank you for the warm welcome and time we spent together in your store earlier this week. I thoroughly enjoyed meeting you and understanding more about your business. I'm thrilled with your passion and motivation towards the high end of the audio world and…

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Thanks for everything – including the scotch

Hi Jennifer It was great seeing and speaking with you at Salon Son et Image and thanks a lot for your invite. Everything was fantastic: the scotch, appetizers, and the most important  - great people! Many thanks for the great time! Oles  

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Spared no effort to ensure my satisfaction

Just a quick note to express my appreciation for the dedicated attention I received from the friendly folks of Coup de Foudre, particularly Graeme, and Jennifer. You spared no effort to ensure my complete satisfaction, and that's exactly what I received, complete satisfaction. Although I live 3 hours away from…

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