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VAC Sigma 170i Integrated Amplifier

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The new VAC Sigma 170i is the world’s first integrated amplifier with the patented iQ Continuous Intelligent Automatic Bias System. The iQ System holds the true idle point of the output tubes perfectly steady under all conditions, increasing detail & dynamics, lowering distortion & noise, prolonging tube life, and protecting the amplifier. Integrated amplifiers are a great lifestyle choice, and VAC lets you have all of the benefits of tubes without the worry.   With optional MM/MC phono and balanced inputs, the 85 watt/channel Sigma 170i is ready to be the heart of your high end musical experience. Features include:
  • Pure vacuum tube audio circuitry
  • 85 watts/channel into 4, 8, and 16 ohm speakers
  • Cinema bypass mode for tie in to home theater
  • Remote control
  • True Class A triode tube line stage
  • Pure analog volume control
  • Four inputs
  • Optional MM/MC phono with adjustable MC loading
  • Optional balanced input
  • Available glass/machined aluminum cage
  • Fascia available in black or silver metal flake paint
  • Hard chrome knobs and iQ display bar
  • Gold Lion KT88 output tubes
  • Premium Cardas RCA & speaker connectors
  • Hand made in the United States by VAC