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Rogue Audio Hydra Power Amplifier


– Output power Hydra: 100/200 WPC 8/4 Ohms
– Input impedance: 200K Ohms
– Frequency response: 10Hz – 20KHz ± 1dB
– THD: <0.1% typ., <1.0% at rated power
– input sensitivity: 1.0V RMS
– dimensions: 18″ W x 15″ D x 5.5″ H
– Weight: Medusa 38 lbs Hydra 34 lbs
– Power requirements: 115/230V – 50/60Hz

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A little background info…

Proprietary tubeD™ circuit topology actually integrates the tube section into the amplifier yielding the smooth natural sound that only a tube amp can provide. With almost uncanny accuracy the Hydra delivers stunning dynamics and transparency without any of the edgy, etched or grainy sounds that often accompanies solid-state designs. A low power standby mode allows critical amplifier sections to remain continuously powered on (if desired) and a slow start feature allows the tubes to warm up gradually to eliminate turn-on noise and greatly extend tube life. Three massive linear power supplies are used to power the amplifier circuitry and ultra-high quality parts are used exclusively throughout the design. Combined with a stunning appearance, you can be certain that you are investing in an amplifier that truly represents the very leading edge of audio technology.





  • Large high-performance toroidal transformers
  • Massive linear power supplies
  • Balanced (XLR) and single-ended (RCA) inputs
  • Heavy-duty gold plated binding posts
  • Two 12AU7 tube complements
  • Short circuit protection
  • Standby circuitry for solid-state components
  • Slow start circuit for extended tube life
  • Machined aluminum faceplate
  • Heavy (2 ounces) copper circuit board
  • All precision components
  • Fully tested, burned in, and auditioned
  • 3-year limited warranty (6 months on tubes)