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Fostex HP-A4BL D/A Converter Balanced Headphone Amplifier

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Fostex HP-A4BL D/A Converter Balanced Headphone Amplifier


  • 4-pin XLR balanced headphone output
  • USB Asynchronous DAC compatible up to 24/192kHz
  • Accepts DSD files up to 11.2MHz
  • High/Low Gain switch
  • Digital Filter for high roll-off frequencies
  • Optical S/PDIF digital input and output
  • RCA pre-amp outputs
  • Robust 1/4" headphone output


  • Amplifier Type: DAC/Amp Combo
  • THD: less than 0.04% @ 1 kHz
  • Frequency Response: 20Hz-80kHz (+-0.3 dB)
  • Output Power: 300mW (32 ohms)
  • Load Impedance: 16 - 600 ohms
  • Inputs: USB and Optical S/PDIF Toslink
  • Outputs: 4-pin XLR Balanced, 1/4" stereo
  • USB Sample Rates: PCM - 44.1K, 48K, 88.2K, 96K, 176.4K, 192K, DSD - 2.8MHz, 5.6MHz, 11.2MHz
  • S/PDIF Sample Rates: 44.1K, 48K, 88.2K, 96K, 176.4K, 192K
  • Dimensions: 150mm(W) x 157mm(L) x 34mm(H)
  • Weight: 630g (1.4 lbs)
  • Warranty: 1 year
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