UPC/EAN #636827306157     MPN #HP-A4BL    

$599.00

Save 20%, MSRP $749.00
Financing available
Free shipping in Canada. Conditions

Model HP-A4BL is an affordable USB DAC & Headphone amp offering balanced connection for headphones. It also complies with DSD Audio up to 11.2MHz.



  • 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
  • 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 terninal
  • 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) terninal (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
  • Quantaization: 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
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