Unison Research Unico 90 Hybrid Integrated Amplifier
Best hybrid amplifier for audiophiles seeking warm, detailed Italian sound.
Experience superior audio with the Unison Research Unico 90, a hybrid integrated amplifier that blends Italian design with advanced technology. This amplifier features a unique zero-feedback circuit and a pure Class A tube input stage for exceptional sonic clarity. Its Class AB output stage utilizes Hexfet transistors for robust performance. With six line inputs, including balanced options, and support for bi-wiring, the Unico 90 offers versatile system integration. Crafted with meticulous attention to wood and metal finishes, it's designed to be a visual as well as an auditory centerpiece in your home.
$5499.00
Owner Satisfaction
4.7
/ 5
Category Rank
418
/ 1685
#418 in Power Amplifiers
Price vs Category Average
-33%
Below average
Output Power
10010081601604
/ + W RMS into Ω / + W RMS at Ω
Who it's for
- Design-conscious listeners who value artisanal Italian craftsmanship
- Audiophiles seeking the perfect balance of tube warmth and power
- Vinyl enthusiasts and digital listeners needing an all-in-one hub
Who should skip it
- Owners with limited shelf space or fragile equipment racks
- Budget-focused buyers prioritizing pure performance over hybrid luxury
- Listeners wanting a low-maintenance, set-and-forget audio system
Performance breakdown
Sonic Transparency
Zero-feedback design delivers an exceptionally natural and uncolored musical presentation.
Power Delivery
Robust Hexfet output stage handles demanding speakers with effortless dynamic authority.
Build Integrity
Meticulous Italian craftsmanship ensures both structural longevity and visual elegance.
System Versatility
Six inputs and bi-wiring support offer flexible integration for complex setups.
Harmonic Richness
Pure Class A tube input stage imparts a warm, organic character.
Frequency Extension
Wide bandwidth ensures detailed reproduction across the entire audible spectrum.
Key Specs
Output Power
100+100 W RMS into 8Ω / 160+160 W RMS at 4Ω
Frequency Response
-1dB @ 12Hz and 45kHz -3 dB
Input Impedance
21Kohm // 300pF
Total Harmonic Distortion
< 0.15% @ 1kHz, 1 W
Net Weight
20 kg
Dimensions
43.5 cm x 44 cm x 18 cm (h)
Global Feedback Factor
0 dB
Power Consumption
550 W (at max power on 8 ohm)
Features
- Hybrid amplifier with tube input stage
- Zero feedback circuit design
- Pure Class A tube input
- Class AB Hexfet output stage
- Six versatile line inputs
- Supports 4+4 bi-wiring
- Elegant Italian craftsmanship
- High-fidelity audio reproduction
What customers say
The Unison Research Unico 90 is celebrated as a masterful hybrid amplifier, successfully merging tube warmth with solid state control. Users consistently highlight its exceptional musicality, noting the rich texture and emotional depth tubes provide alongside the powerful grip and authority of solid state. This unit drives difficult speakers with impressive ease and control, creating a wide, detailed soundstage with precise imaging. Beyond its sonic purity, the Italian craftsmanship is highly regarded, presenting a premium, substantial build quality. For audiophiles prioritizing analog performance and aesthetic appeal, the Unico 90 delivers a compelling experience that justifies its investment, offering deep satisfaction.
Know before you buy
The hybrid design combines a pure Class A tube input stage with a Class AB Hexfet output stage. This gives you the warm, organic texture associated with tubes while maintaining the power, efficiency, and control of solid-state amplification.
By eliminating global feedback, the amplifier avoids the phase shifts and timing errors often introduced by feedback loops. This results in a more natural, open soundstage and improved transient response, making the music feel more immediate and less processed.
The Unico 90 delivers 100 watts per channel into 8 ohms and 160 watts into 4 ohms. This is sufficient to drive most high-quality bookshelf and floorstanding speakers comfortably, even those with more demanding impedance loads.
Yes, the Unico 90 features six line inputs in total, including both balanced (XLR) and unbalanced (RCA) options. This allows for flexible integration with a wide variety of high-end audio components.
Yes, the unit is equipped with binding posts that support 4+4 bi-wiring. This allows you to use separate cables for the high and low-frequency drivers, which can help improve clarity and separation in your speaker system.
The unit measures 43.5 cm wide, 44 cm deep, and 18 cm high, and it weighs 20 kg. Because it is a powerful amplifier, ensure your shelf is sturdy enough to support the weight and provides adequate ventilation for the internal components.
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