Unison Research Valve Amplifiers

Unison Research's valve amplifier line represents the purest expression of Italian tube amplification. These are not hybrids: every stage, from input to output, runs on vacuum tubes. The range spans single-ended triode designs like the Triode 25 and Simply Italy to higher-powered push-pull amplifiers like the S6, with power outputs from 12 to 35 watts per channel in Class A operation.

Each amplifier is hand-wired with point-to-point soldering in Dosson di Casier, Italy, using premium transformers and carefully selected tube sets. Whether you choose the intimate warmth of a single-ended triode or the dynamic authority of a push-pull pentode design, these amplifiers deliver the dimensionality, tonal richness, and musical presence that only an all-tube signal path can provide. Available in standard and Black Edition finishes to complement any listening space.