Pro-Ject Pre Box S2 Digital Edition 23 is a compact high-performance Hi-Fi DAC with integrated preamplifier and headphone amplifier, designed to deliver extremely transparent and detailed digital audio. The Edition 23 upgrade brings an improved internal power supply, redesigned master audio clocks, a stronger Class-A analog output stage, and a more capable headphone amplifier — all contributing to refined sound quality and performance.
🔊 Key features:
• Dual ESS Sabre ESS9038Q2M DACs for high-resolution 32-bit conversion; supports PCM up to 32/768 kHz and native DSD up to DSD512 or DSD1024 via USB.
• Full MQA hardware decoding — enables unfolded MQA playback for high-resolution streaming.
• 7 selectable digital filters + proprietary optimum transient filter for personalised sound shaping.
• Front headphone output (6.3 mm) with updated amplifier stage for low-impedance headphones.
• Variable RCA line output for connection to an amplifier or active speakers.
🎧 Use cases: Works brilliantly as a desktop DAC for computers and streamers, a central hub in a stereo Hi-Fi setup, or a compact headphone amp with audiophile-grade performance.