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Radio Radio

Audio Cards



From: Fostex
  • Weight:1.7 lb

  • Shipping Dimensions:10.3 x 6.3 x 1.9 in

-Up to 24-Bit/192kHz PCM Support
-Up to 5.6MHz DSD Support
-USB 2.0 Input
-Optical S/PDIF Digital I/O

The HP-A4 24-Bit USB DAC Headphone Amplifier from Fostex supports PCM audio up to 24-bit/192kHz and DSD audio up to 5.6MHz. It features a front-panel 1/4" stereo headphone output, rear-panel stereo RCA outputs, and optical S/PDIF I/O. The HP-A4 has 2 gain staging levels, allowing you to boost the output of the amp by 10dB without needing to touch the volume knob. The selectable filter allows you to cut-off lower frequencies if desired. A USB cable and 4 rubber feet are included.


-USB bus powered
-Linear PCM audio up to 24-bit/192 kHz and DSD audio up to 5.6 MHz playback
-High-resolution playback in combination with "FOSTEX Audio Player" software
-HI/LO Gain selection (10 dB)
-Asynchronous transfer mode using custom-made crystal
-Digital filter with selectable roll-off and cut-off characteristics
-Complies with USB Audio Class 2.0 on Windows XP (SP2 or later), Vista, 7, 8 and Mac OS X 10.6 or later
-microSD (SDHC) card drive on the rear panel for future firmware updates