SKU: 55548379152

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

$4495.50 $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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4.7 ★★★★★
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Verified Purchase
Alejandra cajero
Waukegan, US
★★★★★ 5
Good quality
Model: 500N STD
This printer is the best is good quality i love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025
R
Verified Purchase
RogerR2
Pawtucket, US
★★★★★ 4
Good Prints for Sublimation
Model: 500N STD, Model: 500N STD
After years of using converted printers for sublimation, I finally decided to go with the Sawgrass printer, which is specifically designed for sublimation. The printer turned out to be very nice! I’m particularly happy about the Sawgrass customer service they provide. Follow-up. I ordered the SG500 printer bundle from Amazon, but unfortunately, the prints had visible grid lines. I promptly reached out to Sawgrass customer service, and after a few emails, they figured out that the printer I received was faulty. It was all resolved within a few hours, which was way faster than I had expected. They immediately sent me a replacement machine and the prints are absolutely beautiful for my sublimation projects. Sawgrass customer service is truly amazing! Over the past three months, I have been using the Sawgrass printer and have identified a shortcoming that I would like to share in my review. While the prints produced by the Sawgrass printer are satisfactory, they fall short of the quality achieved with a printer I previously used for several years. This printer required a conversion to sublimation printing. I have sent a note to Sawgrass inquiring about potential solutions to this issue a couple of months ago, but I have not yet received a response. This suggests that the company may not have a viable remedy. You be the judge. I followed Sawgrass recommendations and used the Sawgrass Print Utility, but no matter what changes I make, the converted printer seems to produce prints much more to my liking. Both of the book markers shown were sublimated at the same time. In the future, when I have an order to complete, I will be opting to use the more affordable printer that I converted.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
V
varasztan
San Leandro, US
★★★★★ 5
Sawgrass quality is excellent
Model: 500N STD, Model: 500N STD
I've been on the fence with Sawgrass, simply because cost can be an issue, but this past week I decided to put the new Sawgrass to the test against another of my printers which I converted for dye sublimation. I also own the Versiflex. I was on the fence with it initially as well, but I've been using it ALOT and I now have it down to an art. I've made shirts for friends and they were literally blown away at the quality of the print, so. . . yes, it is expensive and yes, you get what you pay for. So. . . I recently received the sublijet ink with my new Sawgrass since you cannot mix inks in a Sawgrass, not even to switch the type of ink for risk of damaging the machine. I'm seriously impressed. I made lanyards, T-shirts, bags and the quality is outstanding. I don't know if I'm going to retire my Epson, but the software to print using the Sawgrass print manager is pretty slick. Lots of options to fine tune your print quality. If you have the cash, buy it. If you don't save up. It's worth it. . . and this is coming from a skeptic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2025
E
Everyday Reviewer
Massapequa, US
★★★★★ 5
Sawgrass is Always Innovating & Improving!
Model: 500N STD
I do own a versiflex and already have an expectation of quality and it did not let down. I’ve been running it for a few weeks and I’m honestly proud of what I’ve made. Mugs come out with deep blacks and smooth gradients, coasters are sharp edge to edge, and my poly tees keep their color after the first wash. Setup was fairly simple - drivers, print Manager, paper in, Wi-Fi paired first try. I barely tweak settings; reds, skin tones, and fine text land right without a lot of tinkering. No banding, no weird shifts, and the first print of the day is clean as it has an auto maintenance. For consistent, sellable results, it’s been worth it so far and I highly recommend it.
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Reviewed in the United States on September 11, 2025
E
Verified Purchase
EGee
New York, US
★★★★★ 5
If you have a Cricut you need this
Style: Starter Bundle
Just what I needed to compliment my Cricut system. Works great, colors are perfect, set up was a breeze, connected to my wireless instantly. Prints look prefect, not all wonky like some can. Value pack was definitely worth the extra $50.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026

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