Unison Research S6 MKII EL-34 Tube Integrated Amp

This is a mint condition unit of the new S6 MKII EL-34 tube integated amp from Unison Research. This unit comes with its original packaging, aluminum/wood remote and instruction manual. The unit will ship double boxed, for safe arrival to your home.

Unison Research S6 MKII Description:

In this new model, the configuration of the final stage was maintained with a Parallel Single Ended Ultra-Pure Class A. The polarization of individual tubes has been changed and transformed from fully automatic to mixed.

About 2/3 Bias is obtained with a cathode-type auto polarization and a third from the fixed polarization. The fixed polarization of each valve is adjustable through a potentiometer and an illuminated analog instrument (for each channel). The choice of the mixed polarization increases the efficiency of the final stage and reduces the factor of local feedback with an appreciable improvement in sound.

The output transformer is a new design, at a fixed output impedance of 6 ohms. The decision to standardize the output impedance at 6 ohms is aimed to optimally interface all speakers with nominal impedance of 4 to 8 ohms.

Particular attention was paid to the power stage: each preamp stage is decoupled and filtered separately.

The new S6 has also been redesigned from a mechanical point of view: the two channels of the amplifier no longer share a single printed circuit but are now separated in two circuits located on the right and left of the chassis. This solution has greatly improved both the crosstalk and the heat dissipation. In this way the temperature in the various circuits is more controlled in the interest of sound quality, stability, reliability and the very life of electronic components.

The S6 MKII aesthetics have been totally redesigned, giving the amplifier greater personality and refinement.

Technical Characteristics:

◦Type: Stereo Integrated Valve Amplifier
◦Output Stage: single-ended parallel, ultraliner
◦Classe: pure A class
◦Output Power: 30/35 Watt/channel
◦Frequency Response: 20 – 50000 Hz
◦Output Impedance: 6 Ohm
◦Input Impedance: 47 kOhm
◦Inputs: 5 line
◦Outputs: 1 tape, loudspeakers
◦Power Consumption: 265VA max
◦Dimensioni : 35 cm x 21cm x 49 cm (L x H x P )
◦Net Weight: 55 lbs

Price includes shipping to Continental USA or Canada.

Feel free to contact seller if you have any further questions. Thank you.