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Pro-Ject Pre Box S2 Digital Phono Preamplifier

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Unique to its class, Pre Box S2 Digital dual-mono configuration with the highest class D/A converters by Sabre. Their ESS9038 DAC chips ensure audiophile-grade sound from a compact, affordable design capable of high-resolution audio up to 32bit/768kHz PCM and DSD512.... Read More
Turntables & Phono Preamps -

Unique to its class, Pre Box S2 Digital dual-mono configuration with the highest class D/A converters by Sabre. Their ESS9038 DAC chips ensure audiophile-grade sound from a compact, affordable design capable of high-resolution audio up to 32bit/768kHz PCM and DSD512. Among the first of Pro-ject's devices to support hardware MQA unfolding via USB, it also features their proprietary ‘optimal transients’ digital filter and proprietary clock circuitry design.

With the proprietary clock design Pro-Ject has managed unrivaled jitter rates of 100 Femtoseconds, easily outperforming many renowned and respected audiophile clock generators. With organic polymer capacitors and thin-film mini-MELF resistors, they were able to create a tiny device that screams value in terms of sonic performance. With a total of seven digital filters, sonics can be adjusted based on your preferences.

Features:

  • Dual mono construction
  • High end ESS Sabre ESS9038 dual DACs
  • Proprietary clock circuity design
  • Organic polymer capacitors and thin film miniMELF resistors
  • MQA hardware decoding
  • DSD64, DSD128, DSD256 & DSD512 (DoP, DSD512 native)
  • Up to 24bit/192kHz for optical & coax inputs
  • 8 selectable digital filter characteristics
  • 1 proprietary optimum transient digital filter
  • Headphone output on the front (6.3mm)
  • Synchronization of all internal oscillators
  • Jitter as low as 100 Femtoseconds
  • Gold plated four layer PCB
  • Handmade in Europe
  • Weight 0.366 kg
  • Dimensions 12.2 × 10.3 × 3.7 cm

Specifications:

  • Digital Inputs: 1x USB (B)
  • 1x Co-axial (RCA)
  • 1x Optical (TOSLink)
  • D/A-Converter: 2x ESS9038Q2M 32-bit
  • Playback Formats USB: up to DSD512 (DSD1024), PCM up to 32b/768kHz
  • Optical: PCM up to 24b/192kHz
  • Coaxial: PCM up to 24b/192kHz
  • Filter settings: 7 different selectable on front
  • Frequency Response: 20Hz – 20kHz
  • Analogue Outputs: 6.3mm Headphone (front), 1x Variable Out (RCA)
  • Output Voltage: 2,05 V
  • Minimal Recommended Headphone Impedance: 8ohms
  • Headphone Output Power: 6,6mW/600ohms, 68mW/32ohms
  • THD: 0,0003% at 0dB, 2V RMS, 1kHz
  • Dynamic Range: 124dBA
  • Outboard Power Supply: 5V/1A DC (included)
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