Unison Research - S6 Black Edition - Integrated Amplifier Integrated Optional grille

Optional grille

excellent tonal color

The preamp circuitry

The combination of efficiency and design

Ideal Room Size

Unison Research - S6 Black Edition - Integrated Amplifier Integrated Optional grilleOverview Classic tube sound: liquid, a touch warm, excellent tonal color. Stereophile The Unison Research S6 Black Edition is a special edition version of one of Unison Researchs most beloved integrated tube amplifiers. Built on the musical foundation of the original S6, the Black Edition brings upgraded circuitry, greater output power, refined power management, a built in DAC section, and a striking new cosmetic design. With its piano black wood