
The S6 MkII is Unison Research's acclaimed push-pull tube amplifier, delivering 35W per channel. Featuring KT88 output tubes in a beautiful wooden chassis, it offers exceptional performance and value.
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The S6 MkII delivers a warm, powerful sound with excellent dynamics. Bass is full and controlled, with good depth and impact. The midrange is rich and expressive, with excellent vocal reproduction. Treble is smooth and extended.

The IS-1000 Deluxe is Gold Note's flagship integrated amplifier, combining exceptional power with refined musicality. This fully balanced design delivers 125W per channel into 8 ohms, with the ability to double into 4 ohms. The optional DAC and phono modules transform it into a complete audio hub.

The IS-1000 Line is Gold Note's acclaimed integrated amplifier, offering exceptional performance at a competitive price. This design delivers 125W per channel into 8 ohms, with the ability to double into 4 ohms. The result is an amplifier that combines power with musicality.

The PA-1175 is Gold Note's reference power amplifier, designed for those who demand the ultimate in power and control. This dual-mono design delivers 175W per channel into 8 ohms, with the ability to double into 4 ohms. The result is an amplifier that can drive any speaker with authority.

The Triode 25 is Unison Research's flagship single-ended triode amplifier, delivering 25W of pure Class A power from a pair of 845 output tubes. This hand-built masterpiece represents the pinnacle of Italian tube amplifier design, combining exceptional craftsmanship with soul-stirring musicality.