Unison Research

Unison Research is an Italian audio company renowned for its high-quality tube amplifiers and audio equipment. Known for their craftsmanship and attention to detail, Unison Research combines vintage tube technology with modern design principles to deliver warm, natural sound.

Their amplifiers are particularly praised for their rich, smooth sound and dynamic performance, providing an immersive listening experience.

With a focus on both aesthetics and performance, Unison Research is a favorite among audiophiles.

Unison Research

Unison Research

All Unison Research hi-fi systems are handmade in our laboratories, combining technical expertise, professionalism and craftsmanship.

From design to electronics, our production is a completely and proudly Made in Italy.

The result is a warm, enveloping, passionate sound, which enthusiasts and experts now define as “an Italian sound”.

Awards

Reviews

"The New Simply 845 ranks at the top of Unison Research's line of integrated tube amplifiers, second only to the historic Absolute 845. The Simply 845, like the Absolute 845, also employs the famous 845 direct-heated triodes, tubes well known for remarkable durability and extraordinary sonic qualities."

-StereoLife Magazine

"If you want a taste of the valve sound at a relatively sensible price, we can think of no finer option than this Unison Research. It’s well built, solidly engineered and sounds great."

-What Hi-Fi?

"Once again the Simply 845 proved capable of reproducing the delicate and the dangerous in equal measure where called for, the emotive one-two punch that turns music into moving experience. Bravo!"

-Twittering Machines

"Through the S9, vocals sound wonderfully convincing and natural. The Unison's great strength is that's it's a very organic-sounding amp. Few amplifiers combine such resolution with such a self-effacing sound. You get fine stereo imaging too, plus one of the most insightful treble performances we've heard."

-What Hi-Fi?

"This amplifier is £3,100 in the UK and to me, that is an extremely reasonable price for this quality of sound. The fact it comes in a beautiful package makes it that much better. Valves without the pain."

-Hifi-Advice

"In the right system the S6 is capable of sonic magic. Hear it working properly and we defy anyone not to fall for its charms."

-What Hi-Fi?

"If you're new to valves and wonder what all the fuss is about, Unison's Research's S6 would be the perfect introduction. It sounds absolutely gorgeous, delivering that sweet glowing richness that tubes are famous for, without loss of bite or immediacy."

-Tech Radar

"With so many phonostages vying for your dollar, the Phono One is at the high side of the price range for what it offers; but, with an excellent electrical and physical design, the Phono One is a wonderful alternative to another stamped-out black box"

-Tone Audio Magazine

"Outstanding: Among the best...keenly priced."

-Hi-Fi World

Belying any expectation one might have born of power ratings, physical size or mode of operation, the sound seemed to our listeners to be outstandingly rhythmic and lively, with excellent articulation and a very good sense of being there.Mar 5, 2008

"Although on paper this amp's performance may not look outstanding, the ears say otherwise. It's a delight to listen to"

-Tech Radar

"Unison Research’s track record with sensibly priced valve amplifiers is second to none. The Triode 25 is yet another strong performer that marries fine sound and distinctive aesthetics with pleasing build"

-What Hi-Fi?

"The Triode 25 in Pentode mode, reminds me of some of the more recent Audio Research designs, but with less power on tap. It is wonderfully clean and transparent sounding with excellent detail and top end energy."

-E-coustics

"Detail is good, especially in quiet passages of music, while imaging has excellent depth and pretty good lateral extension and definition. Despite some specific deviations from most people's idea of 'valve sound', this amp perhaps comes closest to embodying the valve ideal of musical involvement above all else."

-Tech Radar

“Sinfonia is an excellent amplifier capable of brilliant performance in the right system.”

-Audio Impact

"The Sinfonia is a fine amplifier that’s capable of a sparkling performance in the right system"

-What Hi-Fi?

"Belying any expectation one might have born of power ratings, physical size or mode of operation, the sound seemed to our listeners to be outstandingly rhythmic and lively, with excellent articulation and a very good sense of being there."

-Tech Radar

"The Unison Research Unico 90 integrated amplifier and CD Due CD player/DAC are a fantastically musical pair of hifi components that make music a great joy to listen to. The Unico 90 delivers a detailed, fluid midrange, plenty of might and control in the low frequencies and a massive scale."

-Novo.Press

"The Unico 150 strikes a nice balance, it makes you aware of a recordings strengths and weaknesses without ever punishing them to the point of being un-listenable, even at loud volumes."

-Pursuit Perfect System

"The Due is a fine example of what Unison Research's Unico range does best – delivering the perceived benefits of valve amplification without any of the fiddle of speaker-matching, tube biasing and experimenting with various 'bottles'."

-Hifi News

"This is an amp that lives up to its billing and works brilliantly with the Unico CDE. Build quality, externally and internally – including the smooth-running controls (all two of them) and the twin sets of loudspeaker terminals – is excellent."

-Tech Radar

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