Fostex HP-A4BL Headphone Amp and D/A Converter

HP-A4BL - Overview

• Features:

  • Equipped with 4-pin XLR balanced output
  • Newly developed audio-grade capacitor is adopted
  • Highly precise crystal with low phase noise is adopted
  • Playback 24bit/192kHz PCM and 11.2MHz DSD audio
  • High performance DAC (Barrbrown PCM1792A) is equipped
  • Asynchronous transfer up to 192kHz/24bit compatible with USB Audio 2.0
  • HI/LO Gain selection (10dB) for wider selection of headphones
  • Digital filter selecting roll-off characteristics and cut-off frequencies
   

• Specifications:

  • INPUT
  • [USB] terminal
  • Interface: USB 2.0 Hi Speed
  • Sampling Frequencies: PCM 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz DSD 2.8MHz, 5.6MHz, 11.2MHz
  • Quantization: 16bit, 24bit
  • [Digital In] terminal
  • Connector: Optical, Square
  • Format: S/PDIF
  • Sampling Frequencies: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
  • Quantization: 16bit, 24bit
    
    OUTPUT
  • [PHONES BALANCED] terminal
  • Connector: XLR (4-pin)
  • Maximum output: 300mW or more (32 ohm)
  • Load impedance: 16 - 600 ohm
  • THD: less than 0.04% (at 1kHz)
  • Frequency Response: 20Hz - 80kHz (+-3dB, 32 ohm, 100mW)
  • [PHONE UNBALANCED] terminal
  • Connector: 1/4" stereo jack
  • Maximum output: 150mW or more (32 ohm) Applicable load impedance :16 - 600 ohm
  • THD: less than 0.04% (at 1kHz)
  • Frequency Response: 20Hz - 80kHz (+-3dB, 32 ohm, 100mW)
  • [OUTPUT] (L,R) terminal (Analog output) Connector: RCA Pin
  • Reference output level: 2Vrms (0 dBFS)
  • Applicable load impedance: less than 10k ohm
  • THD: less than 0.01% (at 1kHz)
  • Frequency Response: 20Hz-80kHz (+3dB)
  • [DIGITAL OUT] terminal
  • Connector: Optical (square)
  • Format: S/PDF
  • Frequency Response: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
  • Quantization: 16, 24bit
    
    GENERAL
  • [microSD] card slot (for firmware upgrade only) Format: FAT32
  • Compatible card: microSD card (SDHC), up to 32GB
  • Accessories: Rubber foot (x4), USB cable, Manual, AC adapter
  • Power supply: DC12V
  • Measurements: 150(W) x 34(H) x 157(D)mm including protrusion
  • Weight: Approx. 630g
   

• Item Includes:

  • Rubber foot x 4
  • USB cable
  • Manual
  • AC adapter
   

• GTIN:

  0636827306157