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Note 2: This product is custom ordered, please check availability and/or eventual shipping delay.
Note 3: This product is factory set for 240V. Other voltages upon order. Manufacturer´s warranty valid only in the EU.
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UNISON RESEARCH UNICO 90 - CLASS AB HYBRID INTEGRATED AMPLIFIER

Unico 90 is a class AB hybrid integrated amplifier with zero feedback, as the most precious valve amplifiers uses only two stages. The heart of the Unico 90 circuit is found in its hybrid structure. All of the gain, and subsequently the “character” of the amp, is determined by the only tube stage made with ECC83 and ECC 81 in particular multiple-parallel-totem-pole.

Tech specs

• Output power: 100+100 W  RMS on 8Ω / 160+160 W  RMS on 4Ω
• Valves: 2X ECC83, 4X ECC81
• Output stage: Class AB thermostable, 6X Hexfet
• Input stage: Pure A class, double triode  totem pole ECC83  and  parallel totem pole ECC81 This single stage due to the particular circuitry is able to amplify the input signal and drive  directly the power stage.
• Number of stage: 2, This amplifier due to the particular circuitry is realized by only two stages: input stage and output stage, and use only local feedback
• Input: 6 line (3 RCA, 2 XLR, 1 “bypass” RCA)
• Line Outputs: 1 tape, 1 sub  (volume controlled)
• Frequency response: -1dB @ 12Hz e 45kHz -3 dB
• Input impedance: 21Kohm // 300pF
• Input sensitivity: 860mV RMS
• Output connectors: 4 + 4  bi-wiring
• Global Feedback factor: 0 dB
• THD: < 0.15% @ 1kHz, 1 W < 0.5% @ 1kHz, 10 W
• Output resistance: <0.4 ohm, resistive on all audio frequencies
• Power Consumption: 550 W (at max power on 8 ohm)
• Dimensions: 43.5cm x 44 cm x 18 cm h
• Net weight: 20 kg