- Choosing a selection results in a full page refresh.
Special Order
You may return most items within 60 days of delivery. Returns made within 30 days qualify for a full refund, while returns from 31 to 60 days are eligible for store credit or an exchange. If the return is due to our error (incorrect or defective item), we’ll cover the return shipping costs.
Refunds are typically processed within one week of receiving your return.
To start a return, log in to your account, go to Complete Orders, and click Return Item(s). We’ll notify you by email once your refund is processed.
For full details, please review our return policy!
150 W ×2 (8 Ω) / 220 + W ×2 (4 Ω) • Tube Preamp Stage • Class AB HexFET Output • Balanced & Unbalanced Inputs • Bi-Wiring Speaker Outputs
The Unison Research Unico 150 raises the bar in hybrid amplifier design, marrying a two-stage tube preamp (ECC83 + 6H30 triodes) operating in pure Class A with a high-current Class AB HexFET output stage. With 150 W per channel into 8 Ω (and up to 220-250 W into 4 Ω), this amplifier is built for serious speakers and listening rooms.
Featuring wide bandwidth (-1 dB from 12 Hz to 45 kHz), low feedback design (overall feedback = 0 dB), balanced XLR inputs, unbalanced RCA inputs, subwoofer output, and bi-wiring speaker terminals, the Unico 150 blends Italian craftsmanship, high-quality components, and system integration flexibility.
Dual-Stage Tube Preamp — ECC83 + 6H30 triodes in Class A form the musical core of the Unico 150.
Class AB HexFET Output — Delivers massive current and control with < 0.4 Ω output impedance.
Low Feedback Topology — 0 dB global feedback preserves tonal purity and soundstage depth.
“A powerhouse hybrid that still retains the soul of tube amplification.”
“Unison’s design beautifully bridges warmth and control — Italian finesse meets raw power.”
The unit runs warm, as expected of a hybrid amp. The heat sinks are substantial, so it should be placed in a well-ventilated area for optimal longevity.
Yes — tube rolling is supported. You can experiment with different ECC83 or 6H30 tubes for subtle sonic flavor changes. Keep within manufacturer-recommended operating values.
Yes. One RCA input can act as a “bypass,” letting the Unico 150 serve as a pure power amplifier in an AV setup.
Definitely. The Unico 150 pairs beautifully with Unison’s external DACs (like the CDDue) and phono stages. Simply connect via RCA or XLR for full system synergy.
Thanks for subscribing!
This email has been registered!
placeholder