Unison Research S6 Black Edition - Pure Class A Tube Amplification - [ex-demo]
SKU: 55548379152

Unison Research S6 Black Edition - Pure Class A Tube Amplification - [ex-demo]

Sale price$4495.50 Regular price$4995.00
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Description

Unison Research S6 Black Edition - Pure Class A Tube Amplification - [ex-demo]S6 Black Edition The S6 Black Edition amplifier is able to meet the needs of the most demanding users, featuring. To improve the S6 we worked on its strengths and we went even further to achieve higher sound quality. The circuitry has been revised in the signal path and power management, again surpassing the milestones already achieved in the S6. Power output is now 40W, 15% more than the standard model. The polarisation of the power output valves has

S6 Black Edition

The S6 Black Edition amplifier is able to meet the needs of the most demanding users, featuring.

To improve the S6 we worked on its strengths and we went even further to achieve higher sound quality.

The circuitry has been revised in the signal path and power management, again surpassing the milestones already achieved in the S6. Power output is now 40W, 15% more than the standard model. The polarisation of the power output valves has been completely revised to eliminate the capacitor and cathode resistor.
The input selection circuit has been implemented using the same technology designed for our most valuable equipment and extreme care has been taken in the design of the ground paths and channel separation. The valuable audio signal, where possible, travels protected in high-quality coaxial cables.
All the new Black Edition series are equipped with 3 digital inputs USB,SPDIF and Toslink.

Key Features

  • Pure Class A Operation
    Produces a warm, natural sound with incredible midrange presence and emotional impact.

  • 6 x EL34 Valves
    Generates 35W per channel of tube-driven magic—ideal for efficient speakers and intimate listening spaces.

  • Upgraded Black Edition Design
    Elegant black finish with subtle detailing, premium internal wiring, and fine-tuned component selection for enhanced performance and longevity. equipped with 3 digital inputs USB, SPDIF and Toslink.

  • Handcrafted in Italy
    Every S6 is meticulously built in Treviso by Unison Research’s skilled artisans, combining old-world craftsmanship with modern electrical precision.

  • Simple Yet Sophisticated
    Minimalist front panel with intuitive controls and a user-friendly layout, allowing music to take centre stage.

Why Choose the S6 Black Edition?

The Unison Research S6 Black Edition is ideal for audiophiles seeking tube magic with modern reliability. Its rich tonal character, dynamic soundstage, and refined presentation make it a standout in any serious HiFi system.

Paired with high-efficiency loudspeakers, the S6 brings out emotional detail, delicate textures, and tonal authenticity that solid-state amplifiers often struggle to reproduce.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55548379152

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Lisa Brown
Port Orchard, US
★★★★★ 5
Great soft pillow cases
Color: 03 - Navy, Size: Standard (20" X 26")
Pillow cases are beautiful and soft, great quality. I had to return them because standard were too small. I am going to order queen instead.
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Reviewed in the United States on June 9, 2026
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J
Waukegan, US
★★★★★ 5
These Bamboo Pillowcases Made Me Realize I Sleep Hot
Color: 07 - Cream, Size: Queen (20" X 30"), Color: 07 - Cream, Size: Queen (20" X 30")
I bought these mostly because I kept hearing people talk about bamboo pillowcases and honestly thought it sounded a little overhyped, but I totally get it now. The first thing I noticed was how cool they felt compared to regular cotton. I tend to get warm when I sleep and flip my pillow a million times during the night looking for the cold side, and these actually stay noticeably cooler longer. They also feel really soft without having that weird slippery texture some silky pillowcases have. My skin has been less irritated lately and my hair definitely looks less frizzy in the mornings. I have thick hair that tangles easily overnight, and these have helped more than I expected. Another thing I appreciate is that they’ve washed well so far. I was worried they’d pill or lose softness after a wash cycle, but they still feel smooth and nice. They also just make the bed feel cleaner and more comfortable overall. One of those small upgrades that ends up making a bigger difference than you’d think.
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Reviewed in the United States on June 2, 2026
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Aquamac
Cuba, US
★★★★★ 5
Soft and cooling
Color: 08 - Sage Green, Size: Queen (20" X 30")
These are great pillowcases. Very soft, comfortable, and they stay cool throughout the night. They fit perfectly and feel really nice against your skin.
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Reviewed in the United States on May 21, 2026
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Ashley Hile
San Leandro, US
★★★★★ 4
Sheets are good. Greens don't match
Color: 08 - Sage Green, Size: King (20" X 36"), Color: 08 - Sage Green, Size: King (20" X 36")
I purchased the sage green sheets to go along with another Bedsure comforter, then purchased 2 more pillow cases (because i I like a lot of pillows) and the greens don't exactly match. This doesn't REALLY bother me as I feel like its fine with a little "texture." Sheets feel nice and light and I love the look of it in my room.
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Reviewed in the United States on March 3, 2026
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Apple
Massapequa, US
★★★★★ 5
Good buy Pillowcases
Color: 08 - Sage Green, Size: King (20" X 36")
I bought these Bedsure king-size pillowcases from Amazon and overall I’m very happy with them. The first thing I noticed was how incredibly soft and smooth the fabric feels. They almost feel silky, which makes them very comfortable to sleep on. When you lay your head down, the material feels cool and gentle on the skin, which I really like. I also appreciate the zipper closure. It keeps the pillow securely inside the case and makes everything look neat and tidy on the bed. The zipper is hidden well and doesn’t feel bulky or uncomfortable. The only small downside is that the pillowcases are so smooth that the pillows can sometimes slide around or even slip off the bed a little. However, that’s really just because the material is so silky. Overall, I would still recommend these pillowcases. They are soft, comfortable, and feel like a nice upgrade compared to regular pillowcases.
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Reviewed in the United States on March 8, 2026

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