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  • High quality D/A conversion
  • Automatic detection without the need of additional software
  • Powered via USB



The USB Box S is a high-quality external computer soundcard, built to hi-fi specification. It introduces your computer-based music to your traditional hi-fi set-up in a simple but effective way. There's absolutely no installation needed, and the sound is first-class.

Windows computer systems normally resample music from CD with Windows Kernel mixer, but this conversion is well known to deteriorate the end audio performance. Pro-Ject's direct streaming technology allows bit-by-bit processing of the audio file. This avoids unwanted signal alteration by by-passing the Windows kernel mixer. In order to get the most out of this functionality, a playback software like foobar 2000 is needed.

Key Features:

  • High quality D/A conversion
  • SMD technology for shortest signal paths
  • Output stage with ultra-low impedance
  • Automatic detection without the need of additional software, when used with conventional computer systems
  • Powered via USB
  • Runs on Windows® and MacOS® operating systems
  • Metal case shields the electronics from vibration and electromagnetic interference
  • High quality analogue output stage
  • Gold plated RCA connection sockets

Technical Data

Line-Level Output: 1x Pair RCA/Phono Sockets
Output Voltage: 0.775V eff.
D/A Converter: Burr Brown 2702E, 16-Bit Delta Sigma
Sampling Rate: 44.1kHz
USB Input: Digital Serial Data Protocol USB 1.1
Operating Systems: Windows® and Mac OS®
Dimensions: 103 x 36 x 103mm
103 x 36 x 109mm (Incl. Sockets)
Weight: 540g (Without PSU)
Note: We’re constantly updating our website to ensure all our listings are as accurate as possible. However, the images and text on this page can be subject to change without notice, and errors and omissions are excepted.

If you have any questions, please contact us.
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