Fostex HP-V1 Headphone Amp

Portable Tube headphone amp by Fostex the HP-V1.  A lightweight, portable tube amp is rare in the audio community.  Using the 6N16B-Q vacuum tube provides that smooth, warm sound that many audiophiles enjoy. The HPV1 even incorporates a delayed start-up that is necessary for the tubes to warm up properly.  A lithium-ion rechargeable battery provides up to 10 hours of clean power.  With two analog audio input jacks (1/8") on the front and rear allows connection to any portable source.  Plus a high/low selectable gain switch to adjust the amps output for virtually any headphone. 


  • Outputs: 1/8" headphone out
  • Inputs: 1/8" line input (front and rear)
  • Signal-to-Noise Ratio:
  • THD at 1V output:
  • Frequency Response: 20 Hz -100KHz +/-2dB
  • Dimensions: 139mm x 88mm x 33mm
  • Weight: 390 grams
  • Output Power: 200mW@32Ω
  • Charge time: approx. 3.5 hours
  • Runtime: approx. 10 hours
  • Warranty: 1 year