COVID-19 Trading Hours
Mon-Fri 9am-4.30pm. Sat 9am-4pm. Sun Closed.
PROJECT Pre Box S2 Digital Preamp DAC
Move your mouse over image or click to enlarge
PROJECT Pre Box S2 Digital Preamp DAC PROJECT Pre Box S2 Digital Preamp DAC PROJECT Pre Box S2 Digital Preamp DAC PROJECT Pre Box S2 Digital Preamp DAC

Ask a Question

Ask a Question

REGA Neo Turntable Power Supply

REGA Neo Turntable Power Supply

MARANTZ PM8006 Stereo Amplifier

MARANTZ PM8006 Stereo Amplifier

PROJECT Pre Box S2 Digital Preamp DAC

Digital micro preamplifier with MQA and DSD512 support 

As low as $584.00 Regular Price $649.00

Pre Box S2 Digital marks a new era for our S-series components. For the very first time we 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! 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 pro-prietary clock circuitry design. Digital audio is the art of time, with our new proprietary clock design we have managed jitter rates of unrivalled 100 Femtoseconds, this easily outperforms many renowned and respected audiophile clock generators!  

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. With a total of seven digital filters the sound can be shaped precisely to the listeners lik-ing. Pre Box S2 Digital is fully remoteable, 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! 

• 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 (DSD over PCM)  

• Up to 24bit/192kHz for optical & coax inputs  

• 7 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 

Digital Inputs

  • 1x RCA Coaxial (S/PDIF)
  • 1x TOSlink Optical
  • 1x USB Type B

D/A Converter


2x ESS9038Q2M 32-bit PCM 768kHz / DSD512

Headphone Amplifier Chip



Sampling Rates

  • 32KHz
  • 44.1KHz
    • 88.2KHz
    • 176.4KHz
    • 352.8KHz
    • 705.6KHz
  • 48KHz
    • 96KHz
    • 192KHz
    • 384KHz
    • 768KHz

DSD Support

  • DSD64
  • DSD128
  • DSD256
  • DSD512

MQA Support


Full MQA unfolding by hardware

Filter Settings


7 Different settings selectable on front

Frequency Response

  20Hz - 20kHz

Analogue Out

  • 6.3mm (1/4 inch jack) Headphone Out (front)
  • 1x Variable RCA Output

Output Voltage


2.05 Veff

Headphone Output Power


68mW (32 Ohms)




Dynamic Range


124 dBA

Power Consumption


5V Micro USB

Dimensions W x H x D (mm)


103 x 36 x 103



600g without power supply

More from this brand