FS Teac HA-501 headphone amplifier

Extremely well made Class A dual mono headphone amplifier capable of driving most headphones, with adjustable damping factor.

Bought ‘new old stock’ from Unilet in January 2021. Unmarked condition. Silver finish. All original packaging and accessories.

£300 + shipping or collect from Warwickshire.

Spec Details:

  • Full analog circuit design
  • Discrete design Class-A Amplifier
  • Dual Monaural design
  • Active DC Servo technology
  • Dual MUSES8920 Op-amps for Left and Right channels
  • 1,400mW + 1,400mW Output Power (at 32 ohms)
  • Damping Factor Selector
  • Over-sized Toroidal-core Power Transformer
  • Full-metal Jacket, Rigid construction
  • A pair of XLR connectors by Neutrik for balanced audio input
  • 2 pair of RCA pin connectors for unbalanced audio input on rear (Gold-plated)
  • 1 stereo audio input on front (1/8″ or 3.5mm Stereo Mini Jack)
  • 1 stereo headphone out on front (1/4″ or 6.35mm Stereo Jack)
  • 1 pair of RCA pin connectors for stereo unbalanced audio output (Gold-plated)
  • Switchable output line level (Fixed, Variable, Off)
  • +/-15V high voltage operation current achieved high S/N ratio
  • Precisely machined aluminum knobs (Volume, Input Selector, Damping Factor Selector)
  • Auto-muting when headphone plug is disconnected
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