Unison Research S6 Black Edition Tube Integrated Amplifier

The Unison Research S6 Black Edition celebrates one of Unison Research’s most iconic amplifiers with enhanced technical design and a refined, modern look. With a power output increased to 40W and a sleek, piano-black wood panel and gunmetal finish, the S6 Black Edition is crafted to satisfy the most discerning audiophiles. Each detail, from the circuitry to the innovative input selection, has been reimagined to deliver pure Class A amplification that’s as beautiful to hear as it is to behold.

Unison Research New Special Editions

In celebration of Unison Research’s legacy, the S6 Black Edition is part of a special series, joining Black Editions of the Simply Italy and Triode 25 amplifiers. Each model in this exclusive collection features advanced technical upgrades and a refined, piano-black wood finish. With its enhanced circuitry, increased power output, and meticulous craftsmanship, the S6 Black Edition is crafted for audiophiles who seek both sound and sophistication. Be sure to explore the other Black Edition models for a complete Unison Research experience that combines style with substance.

S6 Black Edition Key Features

• Dual Mono Amplification: Enhanced for optimal soundstage and separation.
• Cathode Capacitor-Less Technology: Eliminates phase shift and low-frequency coloration, achieving a rich, natural sound.
• Advanced Input Selection Circuit: Micro relays and Return GND technology minimize noise and maximize channel separation.
• Integrated DAC3 Module: 4 analog and 3 digital inputs (USB up to PCM 384kHz and DSD256, Toslink, and SPDIF) for versatile connectivity.

Revolutionized Sound Quality

The S6 Black Edition introduces Cathode Capacitor-Less technology, removing traditional electrolytic capacitors from the power valves’ cathodes. This breakthrough in design maintains the integrity of the low frequencies, providing a clean, detailed response down to the lowest harmonics. By operating entirely in Class A with an ultralinear 20% tap, the S6 produces a sound that is richly dynamic and immersive, reproducing subtle micro-details with enhanced clarity.

Optimized Power Management

Featuring a 7-section winding transformer, the S6 Black Edition is built to drive demanding modern loudspeakers, delivering a consistent 40W output for precise, effortless audio reproduction. The dedicated negative grid voltage power supply enhances control and stability, while carefully positioned polypropylene capacitors in the power supply ensure smooth transients and expansive dynamics.

Exclusive Gold Lion Valves

Equipped with premium Gold Lion tubes, including two ECC83 triodes for preamplification and six KT77 tubes in parallel for output, the S6 Black Edition is fine-tuned for peak technical and acoustic performance. These valves are matched to deliver a lifelike sound experience, with an open, vibrant presentation free from distortion or feedback.

The Listening Room Experience

Your listening space is unique, and so are your needs. That's why we take the time to understand your preferences, your room acoustics, and your sonic dreams. We'll guide you through our range of hi-fi options, ensuring you find the perfect match for your space and budget. We believe in personal connections, exceptional service, and expert advice because when it comes to sound, there's no one-size-fits-all solution. Contact us to learn more.

Technical Specifications

• Output Power: 40W
• Bandwidth (-1dB): 15Hz - 30kHz
• Valves: 2 x ECC83 Gold Lion (signal); 3 x KT77 Gold Lion per channel (output)
• Class: Pure Class A with ultralinear configuration (20% tap)
• Inputs: 4 RCA line inputs, 1 USB, 1 SPDIF, 1 Toslink
• Outputs: 1 subwoofer RCA (stereo)
• Dimensions: 35 x 22 x 50 cm (WxHxD)