Unison Research

According to the manufacturer, the Unison Research Triode 25 Black Edition has an optimized amplifier circuit - both in the signal path and in the power supply.

The speaker body is made of medium-density fiberboard and reinforced with internal ties, as well as solid wood side linings. All other panels are covered with artificial leather, and the dual port of the bass reflex is directed at the listener. A compression driver loaded on a horn and equipped with a titanium dome is responsible for high frequencies. The main driver has a 200 mm diameter paper diffuser.

The MAX 1 speakers from Unison Research are the first speakers from the company to use horn technology. These acoustic systems were created in order to ensure the ideological completeness of the Unison Research sound path and ensure perfectly coordinated operation with both the company's tube and hybrid amplifiers.

The Unison Research Max 2 floorstanding two-way loudspeakers are the flagship acoustics model from Unison Research, designed mainly for tube amplifiers of the company's own production.

The main idea behind the development of Malibran was the desire to create an uncompromising speaker system without frequency and dynamic limitations, with acceptable dimensions for a living space. This is made possible by the new 10-inch woofer driver with aluminum-magnesium alloy diffusers loaded onto individual compression chambers with a volume of 40 liters.

Primo is an integrated stereo amplifier, which is a perfect example of the Italian style. Elegant lines and details, carefully thought-out proportions and surface treatment have been universally recognized. The robust design, careful selection of components and precise assembly have concentrated all the experience, knowledge and ambitions to create audio technology in a small amplifier.

This is a hybrid integrated amplifier, which is an evolution of a popular European brand. Among the innovations: AC connection by buy-waring, MM/MS phono corrector with passive RIAA circuits on HF (audiophile solution). All amplifier circuits are optimized by repeated listening.

The Unico Due integrated amplifier has replaced the proven Unico Secondo, but differs from it very significantly. The changes affected almost all elements of the scheme. In the pre-amp section of the hybrid device, two ECC83 dual triodes operate, selected based on the results of long listening sessions. The power amplifier is built on MOSFET transistors and outputs up to 100 watts at 8 ohms.

The Unison Research Unico 90 is a hybrid integrated AB class amplifier with zero feedback. The heart of the Unico 90 is in its hybrid scheme. The tube character of the amplifier is determined by the tube stage assembled on the ECC83 and ECC81, in particular, with several parallel totem poles.

The Unico 150 has a two-stage tube preamp on ECC83 and 6H30 triodes operating in Class A, and output stages on custom-made complementary field-effect transistors (four pairs per channel) operating in A/B mode.

The Unico PRE is a hybrid fully balanced preamp. All audio circuits are designed according to the "double mono" scheme. Each channel has its own pre-stage, an analog attenuator (controlled by an electric drive) and a power supply circuit. Unison Research engineers have developed original schemes for a fully balanced volume control, even for unbalanced signals, which provides the best reproduction accuracy, linearity and noise characteristics.

The Unico DM was designed as a multi-purpose amplifier.When using the Unico DM amplifier in bridge mode, it can generate a huge power of 0.5 kW per channel or it can be used in the system as a multimodule, the choice of modes of operation of which will be carried out automatically.The ECC82 dual triode is used in the input stage, which gives the Unico DM its convincing natural sound quality.

The Unico Uno CD player also features the use of triodes in the output stage. The ECC82 lamp is used here, however, to ensure a low output resistance, a Class A transistor stage is also installed behind it. The digital-to-analog converter in the model is made on the same chip as in the Unico Due - ESS Sabre DAC ES9018K2M amplifier, and it works not only with the data stream from the CD drive, but also with the signal coming from external sources.

The Unico CD DUE is equipped with an ESS Sabre digital-to-analog converter with a jitter suppression unit and switchable digital filters. The current/voltage converter of the DAC is based on low-noise operational amplifiers AD8597/AD8599.

The phono corrector section allows you to adjust the input capacitance for MM cartridges (100, 200, 320 and 420 pF with an impedance of 47 kOhm), fixed gain – 38 dB. Gain switching (58 or 69 dB) as well as impedance is available for MC pickups. (5, 10, 25, 100, 250, 500 Ohms, 1 kOhm). There is a switchable roar filter. In the phono corrector mode, two outputs are available – fixed and adjustable.