Phono One

About the Phono One

The Unison Research Phono One is a flagship tube phono preamplifier crafted in Italy for discerning vinyl enthusiasts. Renowned for its pure Class A, zero-feedback design, the Phono One employs five ECC83/12AX7 valves and an external power supply to deliver exceptional musicality and low noise. It supports both MM and MC cartridges, offering adjustable input impedance and capacitance for optimal cartridge matching. The chassis features a black-powder-coated steel case with elegant wood accents, combining classic aesthetics with robust build quality. Hand-soldered wiring, careful tube placement to minimize microphonics, and oversized power components ensure reliability and sonic purity. The Phono One is celebrated for its dynamic, expressive sound and is considered a reference-level phono stage in its class.