VSystem

Digital-to-analog converter with MQA and DSD512 support

Pre Box S2 Digital marks a new era for our S-series components. For the very first time are using a dual mono configuration with the highest class D/A converters of ESS Sabre. Their flagship DAC-chip ensures highest class audio in a small and affordable package. This DAC is capable of high resolution audio up to 32bit/768kHz PCM and DSD512.

A performance revolution

Pre Box S2 Digital is also the very first of our devices to support hardware MQA unfolding. It’s also the premiere of our proprietary Optimum transient digital filter and our proprietary clock circuitry design.

Audiophile achievements

Digital audio is the art of time, with Pro-Ject new proprietary clock design they have managed jitter rates of unrivalled 100 Femtoseconds, this easily outperforms many renowned and respected audiophile clock generators.

Small package of high class

With organic polymer capacitors and thin film miniMELF resistors Pro-Ject were able to create a tiny device that will blow away even much bigger components for a much higher price. With a total of eight digital filters the sound can be shaped precisely to the listeners liking.

Freedom of use

Pre Box S2 Digital is fully remotable, it can also control the playback software of a computer. You can use Play, Pause, Forward and Rewind straight with your Pre Box S2 Digital!

Features

• Dual mono construction
• High end ESS Sabre ESS9038 dual DAC
• 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
• Full alu/metal sandwich casing in silver or black

What's in the box?

• Pre Box S2 Digital
• Power supply
• Remote control

Technical information

• Digital inputs: 1x USB (B), 1x Co-axial (RCA), 1x Optical (TOSLink)
• D/A-converter: 2x ESS9038Q2M 32-bit
• 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: 20 Hz - 20 kHz
• Analogue outputs: 6.3mm Headphone (front), 1x Variable Out (RCA
• Output voltage: 2.05 Veff
• Minimal recommended headphone impedance: 8 Ohm
• Headphone output power: 6.6 mW / 600 Ohm; 68 mW / 32 Ohm
• THD: 0.0003% @ 0 dB, 2V RMS, 1 kHz
• Dynamic range: 124 dBA
• Outboard Power supply: 5V/1A DC (included)
• Dimensions W x H x D: 103 x 37 x 122 mm (including knob and connectors)
• Weight: 366 g (without power supply)