Skip to content
  1. 🚚 Free Shipping on Orders over $99 to Continental US
  2. 10% OFF 4️⃣ or MORE Records Every Day! details
  3. 🔴 Save On Audio Gear shop gear specials

Pre Box S2 Digital - Black - (Open Box Special)

SKU bst-eq-1295-cert7

pre-amp / DAC / headphone amp, capable of ultra hi-res audio
Write a review
| Ask a question
sale Current Price$329.00 Original Price$399.00
TTL Rewards icon Earn up to 3290 Reward Points with this purchase! Read more
  • Get more info on our FREE SHIPPING terms
  • 📦 Standard Shipping ships within 1-3 Business Days
  • 🌎 International Shipping Experts, Fully Tracked
  • ⇨ Need a gear recommendation or a customized package?
  • Contact our support team for all your questions!

    Contact support for recommendations or customization questions

    We answer requests Mon-Fri 10am-6pm EST

  • Lab Overview
  • Review & Q+A
  • Tagged

Lab Overview

Open Box / B-Stock Notes

  • exterior grade: 7.0 out of 10 - very good, some surface wear
  • item cosmetic note: Scratch on knob
  • item function: ✔️ tested
  • item exterior packaging: original, packaging may show damage
  • note: all open box / b-stock items are final sale


  • 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's 1st ever dual mono configured preamp
  • highest quality D/A converters by ESS Sabre capable of extremely hi-res audio up to 32bit/768kHz
  • 3 digital inputs: coax (S/PDIF), optical (TOSlink) + USB
  • up to 24bit/192kHz sound for optical + coax inputs  
  • 7 digital filters allow you to customize the characteristics of the sound to your liking
  • ESS-designed headphone amp can support 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, making it an incredible value at under $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" Headphone Out (front) / 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: 1.3 lbs / 600g


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

Review & Q+A


Labheads Also Viewed