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Pro-Ject USB Box S+


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Found it cheaper? Click here. SKU: PJUSBSPLUS
Ex VAT: 112.46

RRP: £169.00


Save 20% while stocks last, an excellent USB streaming solution.

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Condition:Brand new in original retail packaging

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RRP: £169.00


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Warranty length 2 Years
Brand Pro-Ject
Product Award HiFi World 5 Globes

Tech Specs

DAC: Burr-Brown PCM-5102A
DAC Tech: Multibit Delta Sigma
Bit-Depth Handled: Up to 32-bit
Inputs: 1 x USB Type-B
Outputs: 1 x Unbalanced RCA (pair)
Sampling Rates: Between 32 - 384kHz 
Output Voltage: 2.1V rms
Freq Response: 20Hz - 50kHz (0db;-1dB)
Filters: Min Distortion/ Optimum Phase
Power Supply: 9V / 300mA
Dimensions (WHD): 103 x 36 x 109mm
Weight: 576g (excl. Power Supply)

Product Description

Pro-Ject USB Box S+ turns computers into serious hi-fi sources by bringing the most advanced technologies surrounding asynchronous USB data transfer together into a very user-friendly Digital to Analogue Converter.


A great buy for any dedicated computer audiophile and as simple to set up as plug-in-and-play for most operating systems. It delivers true hi-fi quality sound with the addition of a high-end XMOS chipset to handle asynchronous USB streaming up to 32-bit/384kHz.

The further benefit of a 2.1V RMS output means the audio signal path after the chip is clear of superfluous extra capacitors. And when it comes to sound quality, less is always more. The USB Box S+ perfectly matches the size and aesthetic of other models in the Box Design ‘S’ range but is also a great partner for other non-Pro-Ject electronics.

Key Features

- Premium 32-bit / 384kHz PCM-5102A DAC chip from Burr Brown
- XMOS technology for lowest possible jitter
- Upsampling to 352.8kHz or 384kHz
- 32-bit / 384kHz asynchronous USB streaming
- Dedicated USB 2 driver for Windows OS (Apple/Linux are driver-less)
- 2 selectable filters and ultra-linear circuitry
- Extremely low impedance on output stage

Press Reviews

  • 'The Pro-Ject USB Box S+ may be a small package but it produces a big detailed and rich sound' (Hi-Fi World Magazine September 2014)

  • 'There's also a refreshing balance to the sound, with no undue emphasis on any part of the sonic spectrum. Instead the Pro-Ject retains an even-handed approach at all times which ensures treble is bright without veering into nastiness, while the midband is smooth and detailed.' (Hi-Fi World Magazine September 2014)
  • 'Overall the sound is more spacious which shows the little Pro-Ject is well capable of handling high-res material.' (Hi-Fi World Magazine September 2014)

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