Headphone Amplifier Vacuum Tube Headphone Amp Mini Hi-Fi Stereo Audio with Low Ground Noise Output Protection for Headphones Fosi Audio P2

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Sale price$45.99 Regular price$59.99


  • 📝❤Excellent sound performance: Low ground noise, built-in output protect circuit, no buzzing or ringing noise, Audiophile-level sound quality, exclusively designed for the customers who pursue HiFi sound; and safe for your expensive headphones
  • 📝❤Stereo and Preamplify: Headphones amp also can be used as stereo preamp, Parallel 3.5mm and RCA stereo inputs, 6.35mm headphone output, include a 6.35mm to 3.5mm adapter;
  • 📝❤High-performance: P2 is a Hi-Fi tube headphone amp, 2 X 6K4 J-Grade tubes can easily power high-performance headphones including the HD580, HD600, HD650, K701, K702, Q701, and many more, recommend 32-600ohm headphones
  • 📝❤Easy replace tube: Tubes can be replaced by 6j1/6J4/GE5654/6AK5/6*1n/ E180F/6ж9П/EF861/6688 tubes etc
  • 📝❤Exquisite appearance: Small Compact Size, All aluminum alloy shell and come with a 18-month manufacturer's warranty.


  • OP-amp: NE5532
  • Audio Input: 3.5mm Audio jack, Stereo L / R RCA
  • Frequency range: 20Hz-20 kHz (± 3dB)
  • THD: ≤0, 03%
  • Matching headphone impedance: 32-600 Ω
  • NR: ≥ 95db
  • Operating voltage: DC12V
  • Input sensitivity: 0.2mV
  • Dimension: L99 * W98 * H33 mm
  • Net weight: 0.25 kg

Packing List1

  • headphone amplifier x1
  • 6J4 vacuum tubes x2
  • DC 12V Power Supply x1
  • 6.35mm to 3.5mm Adapter


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