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Unison Research Preludio Valve Amplifier

Unison Research


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Part of our classic line of tube amplifiers that include the Sinfonia and the Performance, the Preludio integrated amplifier continues the technical approach, sound and aesthetics of its larger siblings. While the Preludio’s appearance is certainly gorgeous, it is also extremely reliable due to its unique design solutions, quality materials and adherence to the highest of standards.

  • Type: Stereo Integrated Valve Amplifier
  • Output Stage: single ended ultralinear A class
  • Output Power: 14W / channel
  • Inputs: 4 line, 1 tape
  • Outputs: 1 tape, 1 sub woofer, loudspeakers
  • Input Impedance: 47 kOhm
  • Output Impedance: 6 ohm
  • Feedback factor: 10dB
  • Frequency Response: 15 – 50000 Hz
  • Valves: 2 x 6550/KT88, 2 x ECC82
  • Remote Control: IR for volume
  • Power Consumption: 200W max
  • Dimension: 37.5 x 40 x 18cm
  • Net Weight: 40 lbs