Unison Research Performance Integrated Tube Amplifier
Best tube amplifier for audiophiles seeking rich, high-end sonic performance.
Experience legendary sound with the Unison Research Performance integrated amplifier. This latest iteration enhances power output while preserving the iconic aesthetic and musicality of the original. Featuring a sophisticated parallel single-ended ultralinare Class A output stage, it delivers superior audio quality. Available in elegant Cherry or Mahogany finishes, this high-end component is sold by an authorized dealer, ensuring you receive the full manufacturer’s warranty and dedicated factory support for your investment. It's designed to bring unparalleled sonic pleasure to your listening space.
$13999.00
Owner Satisfaction
4.7
/ 5
Category Rank
418
/ 1685
#418 in Power Amplifiers
Price vs Category Average
+70%
Above average
Output Stage
Parallel single-ended ultralinare A class
/ Parallel single-ended ultralinare A class
Who it's for
- Audiophiles seeking rich, natural, and highly musical tube sound
- Design enthusiasts wanting a visually stunning, handcrafted centerpiece
- Listeners with demanding speakers needing substantial tube power
Who should skip it
- Budget-conscious buyers wary of ongoing tube replacement costs
- Users with small, poorly ventilated rooms or heat sensitivity
- Mainstream consumers looking for affordable, entry-level amplification
Performance breakdown
Sonic Musicality
Class A circuitry delivers a rich, organic sound profile for critical listening.
Build Integrity
Substantial fifty-kilogram chassis construction ensures long-term stability and vibration resistance.
Power Delivery
Forty-five watts of pure tube power drives most high-end speakers effortlessly.
Aesthetic Design
Exquisite wood finishes and exposed tubes create a stunning visual centerpiece.
Connectivity Versatility
Multiple line inputs and bi-wiring support accommodate complex, high-fidelity audio setups.
Thermal Management
Pure Class A operation generates significant heat requiring ample ventilation space.
Key Specs
Output Stage
Parallel single-ended ultralinare A class
Output Power
45 W
Amplifier Class
Class A, Tube
Frequency Response
20 Hz – 30 kHz
Input Impedance
47 kOhm
Output Impedance
4 – 8 ohm
Net Weight
50 Kg / 110lb
Dimensions
60cm x 48cm x H 23,5 cm
Features
- Legendary integrated amplifier, latest version
- Increased power output capability
- Iconic original aesthetic preserved
- Parallel single-ended ultralinare Class A output
- Available in Cherry or Mahogany
- Full manufacturer warranty included
- Supports loudspeaker bi-wiring
- High-end audio component
What customers say
This integrated tube amplifier earns high praise for its exceptional sonic quality and beautiful Italian craftsmanship. Reviewers consistently highlight a warm, lush, and deeply musical sound signature, noting superior midrange clarity that renders vocals and acoustic instruments lifelike and easy to enjoy for hours. It effectively powers diverse speakers with a refined presentation. Beyond the audio, the design, featuring quality wood accents, makes it a visually appealing centerpiece. While the initial cost is premium, owners feel the outstanding sound quality and build justify the investment for a long term component. The overall sentiment reflects deep satisfaction and enthusiastic recommendation within the audiophile community.
Know before you buy
With 45 watts of Class A power, this amplifier is best suited for speakers with moderate to high sensitivity. It supports both 4 and 8-ohm loads, making it compatible with a wide range of high-end floorstanding and bookshelf speakers.
Yes, the Performance is equipped with dedicated outputs that support loudspeaker bi-wiring. This allows you to separate the high and low-frequency signals for improved clarity and performance if your speakers are bi-wire capable.
The unit is quite substantial, weighing 50 kg (110 lbs) and measuring 60cm wide by 48cm deep. You will need a sturdy, well-ventilated equipment rack or stand that can handle both the significant weight and the heat generated by the tube-based Class A design.
The amplifier utilizes a complement of six 6550/KT88 power tubes, along with two ECC82 and two ECC83 tubes for the input and driver stages. This configuration is central to the amplifier's signature warm, musical sound.
You can connect up to four line-level sources via RCA inputs. Additionally, it features a dedicated tape input and output for those who use analog recording equipment or external processors.
While tube amplifiers require more attention than solid-state gear, the Performance is designed for reliability. You should ensure proper ventilation to extend tube life and be prepared to replace the valves periodically as they naturally wear out over time.
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$13999