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Pro-Ject PreBox S2 Digital

Micro-sized digital stereo preamp with built-in headphone amp (Silver)

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Item # 252PBS2DS

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Overview

Our take on the Pro-Ject PreBox S2 Digital

Use this little gem for high-fidelity sound with your digital audio sources, including high-res audio tracks. The Pro-ject PreBox S2 Digital measures barely over four inches wide, but it's big on flexibility. Use its stereo RCA outputs to feed pristine audio signals to a pair of powered desktop speakers or a power amp. Or connect your favorite set of headphones to the front-panel 1/4" jack.

Pint-sized audio precision

Use this little gem for high-fidelity sound with your digital audio sources, including high-res audio tracks. The Pro-ject PreBox S2 Digital measures barely over four inches wide, but it's big on flexibility. Use its stereo RCA outputs to feed pristine audio signals to a pair of powered desktop speakers or a power amp. Or connect your favorite set of headphones to the front-panel 1/4" jack.

Built to impress

The PreBox S2 Digital sports a dual mono configuration, with two high-performance DACs (digital-to-analog converters) onboard. It can play just about any high-res audio track you send its way, including super-high-res DSD files. There's built-in hardware support for MQA (Master Quality Authenticated) files, such as those available through TIDAL's streaming audio service. Jitter — digital timing errors that can smear musical details — is reduced to vanishingly low levels. It all adds up to surprisingly robust sound, given the PreBox S2's small size and reasonable price tag.

Product Highlights:

  • dual mono circuitry with two high-performance ESS Sabre DACs (ESS9038Q2M)
  • high-res audio playback, including PCM-based files up to 32-bit/768kHz and DSD512
  • full hardware-based MQA support
  • selectable digital filters
  • vanishingly low jitter (as low as 100 Femtoseconds)
  • full-color OLED display for volume, input, sample rate, and type of input signal
Specs:
  • frequency response: 20-20,000 Hz
  • total harmonic distortion: 0.0003%
  • headphone output power: 68 mW (32 ohms)
Inputs:
  • 1 coaxial digital
  • 1 optical digital (Toslink)
  • 1 USB Type-B for connection to a computer
Outputs:
  • RCA stereo output (rear-panel)
  • 1 front-panel 1/4" full-sized headphone output
Dimensions & Warranty:
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