Hybrid Muscle Meets Tube Soul

The Unico Primo Integrated Amplifier is Unison Research's gateway into their celebrated hybrid Unico line — an 80-watt-per-channel powerhouse that pairs a Class A triode tube input stage with a dynamic Class A MOSFET output. The result is a first-rate sound that captures the warmth and transparency valve fans crave, without the traditional drawbacks, and with enough grip to unlock the bass and dynamics of demanding speakers. Precise, detailed and effortlessly musical, the Primo punches far above its price.

A Tube Heart, a Solid-State Grip

A single ECC83 (12AX7) valve handles the input in pure Class A, feeding a complementary POWER MOSFET output stage biased in Dynamic Class A. That architecture is the secret to the Primo's character: the harmonic richness and openness of a tube in the signal path, married to the control, low noise and speaker-driving authority of a modern solid-state output. The bass is unusually solid and gripping, and detail retrieval stays composed even through the most challenging passages.

Connect Everything — and Vinyl Too

As a line-level amplifier the Primo offers five line inputs and a tape circuit, but its party trick is versatility: one line input can be converted to an MM/MC phono stage with an optional internal RIAA board, and a dedicated subwoofer output lets you build a 2.1 system. That expandability makes the Primo a genuinely future-proof buy that stays useful long after other amps would need replacing.

Why You'll Love the Unico Primo

• 80W RMS of hybrid tube-plus-MOSFET power with real speaker-driving grip
• Solid, tuneful bass and lifelike detail across every genre
• Optional internal phono board for MM/MC cartridges — vinyl-ready
• Subwoofer output for easy 2.1 / 2.2 expansion
• Handsome, low-noise Italian build designed to last for years

Frequently Asked Questions

Can I play vinyl through the Unico Primo?

Yes. One of the line inputs can be converted to an MM/MC phono stage by adding the optional internal RIAA board, giving you a warm, authentic turntable input without an external phono box.

Is it a tube amp or a solid-state amp?

Both — it's a hybrid. A Class A ECC83 tube input stage feeds a dynamic Class A MOSFET output, blending tube musicality with solid-state control and power.

Can I add a subwoofer?

Absolutely. A dedicated subwoofer RCA output lets you run a 2.1 or 2.2 system for extra low-end depth and impact.

Unico Primo Technical Specifications