Unison Research Unico Due

The electronic circuitry of the Unico Due has been completely redesigned. While maintaining the qualities that made the Unico range such a legend in the audio industry, key improvements have been made that are nothing short of ground-breaking. Firstly, the power supply circuits have been enhanced thanks to a substantial increase in filter capacitance size and to a new high quality shielded and encapsulated power transformer. The new power distribution system of the audio power output stage combines space optimization and superior circuit solutions.

The power amplifier stage itself features a sophisticated implementation of MOSFET transistors resulting in 100W per-channel output (8 ohm). The net result of which is a clean, powerful output with incredibly low levels of distortion. By reducing distortion so significantly in this stage, Unison Research have ensured that only the sonic character of the valves remain staying true to the fundamental purpose of the Unico line.

The Unico Due stands out as a modern system hub not just thanks to its multiple line-level inputs, but also as a result of its built-in USB DAC and phono stage. The USB input features an ESS Sabre DAC ES9018K2M with jitter eliminator circuit, offering support for audio files up-to 32-bit/384kHz PCM and DSD256. Elsewhere, the integrated phono stage module is pre-set to accept Moving Magnet (MM) cartridges, but can be modified by a service engineer to cater for Moving Coil (MC) devices. Additionally, the Unico Due has settings for AV passthrough, subwoofer output, DAC output, a TAPE loop and to adjust channel balance.

The Unico Due is a powerful, easy to accommodate amplifier with a wide range of features and a sonic presentation that boasts all the benefits of valve technology with none of the shortcomings.

Previous Next

Klik op de afbeelding voor een vergroting
Click picture for magnification

Output power: 100+100W RMS into 8 Ohms, 180+180W RMS into 4 Ohms, 290W+290W RMS into 2 Ohms
Filter capacitance: 80,000uF
Output stage: Dynamic Class A power BJT double complementary pair, Super-Symmetric configuration
Biasing: Dynamic Class A
Valves: 2 x ECC83 (12AX7)
Inputs: 3 analogue line (RCA), 1 digital (USB), 1 tape RCA, 1 x Analogue Phono (RCA) Set to MM
Analogue Line Outputs: 1 x Tape (RCA) Fixed , 1 x Stereo Subwoofer (RCA) Variable, 1 x DAC (RCA) - Fixed
Dimensions: 43.5 x 43 x 13 cm (W x D x H)
Biasing: Dynamic Class A
Speaker Output Connectors: 4 + 4 (Bi-Wirable)