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Pre Box S2 Digital - Black

SKU eq-1295

pre-amp / DAC / headphone amp, capable of ultra hi-res audio
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sale $399.00
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also available:
  1. Silver
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Lab Overview


  • converts digital audio signal to high quality analog signal (DAC), works especially well with computer audio + TV, also includes headphone amp
  • includes features and components usually found in much higher-price components
  • Pro-Ject'sĀ 1st ever dual mono configured preamp
  • highest quality D/A converters by ESS Sabre capable ofĀ extremelyĀ hi-res audio up to 32bit/768kHz
  • 3 digital inputs: coax (S/PDIF), optical (TOSlink) + USB
  • upĀ to 24bit/192kHz sound for opticalĀ + coax inputsĀ Ā 
  • 7Ā digital filters allow you toĀ customize the characteristics of the sound to your liking
  • ESS-designed headphone amp can supportĀ up to 600-ohm headphones
  • full metal casing
  • remote included
  • EISA Best Product Award Winner 2017-2018
  • note: this is NOT a phono preamp
  • also available in black

"If you want to improve the sound of your computer, the Pre Box S2 is an easy choice. The S2 performs at a level higher than some bigger and pricier units,Ā making it an incredible value at underĀ $400. It has been garnering excellent reviews across the board." - TTL


  • proprietary Optimum transient digital filter + clock circuitry design for unrivaled sonic presentation
  • synchronized DAC oscillators for extra low jitter + minimal sound interference
  • 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: 7 different selectable on front
  • Frequency response: 20Hz - 20kHz
  • Analog out: 1/4"Ā Headphone Out (front)Ā / 1x Variable Out (RCA)
  • Headphone output power: 68mW (32Ohms)
  • Dynamic Range: 124dBA
  • dimensions: 4" x 1.4" x 4" / 103 x 36 x 103 mm
  • weight:Ā 1.3 lbs /Ā 600g


  • CD driver for playing DSD files on Windows
  • remote
  • power supply
UPC: 844682008851

Review & Q+A


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