Pre Box S2 Digital


Digital micro preamplifier with MQA and DSD512 support

  • Dual mono construction
  • High end ESS Sabre ESS9038 dual DAC
  • MQA hardware decoding
  • Up to 24bit/192kHz for optical & coax inputs
  • Full metal housing

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Small size – big features

This little desktop DAC is capable of high resolution audio up to 32bit 768kHz PCM and DSD512! Pre Box S2 Digital is also supports hardware MQA unfolding.

With organic polymer capacitors and thin film miniMELF resistors we were able to create a tiny device that will blow away even much bigger components for a much higher price.

3 digital inputs:1x coax (S/PDIF), 1x optical (TOSlink®), USB B
D/A-converter:2x ESS9038Q2M 32-bit PCM 768kHz / DSD512
Headphone amplifier chip:ESS9602
Sampling rates:32/44,1/48/88,2/96/176,2/192/352,8/384/768 kHz
DSD support:DSD64, DSD128, DSD256 and DSD512
MQA support:full MQA unfolding by hardware
Filter settings:8 different selectable on front
Frequency response:20Hz – 20kHz
Analogue out:6.3mm Headphone Out (front), 1x Variable Out (RCA)
Output voltage:2,05 Veff
Headphone output power:68mW (32Ohms)
Dynamic Range:124dBA
Power consumption:5V, micro USB
Dimensions:103 x 37 x 122 mm (including knob and connectors)
Weight:366g without power supply


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