VSystem

A Modern Classic, Refined

The Pre Box S2 Digital has been a standout in the DAC market since its 2017 debut, renowned for delivering high-end performance at an accessible price. The 2023 edition elevates this modern classic with significant enhancements, ensuring it remains a top choice for digital and PC-audio enthusiasts.

Enhanced Power Supply & Clock Design

The 2023 edition features a newly designed internal power supply, offering superior isolation from USB power noise and a wider, flatter output impedance. The redesigned master audio clocks further reduce phase noise, enhancing jitter performance for even more precise audio reproduction.

Improved Output Stage & Headphone Amplifier

The upgraded analog output stage, based on the SABRE9603Q, now operates with higher Class A current, improving performance with low-impedance headphones and long cable runs. The new headphone amplifier is more energy-efficient, providing better sound quality with lower power consumption, making it ideal for mobile use.

Unbeatable Value, Handmade in Europe

By optimizing cabinet size and focusing on advanced PCB design, the Pre Box S2 Digital Edition 2023 offers exceptional value. Handmade in Europe, it combines cutting-edge technology with a timeless design in a compact, durable aluminum case.

Features

• Edition 23: Powerful output stage for headphones
• Edition 23: Analog output stage with higher Class A current
• Edition 23: Redesigned discrete audio master clock
• Edition 23: New internal power supply design
• Edition 23: Lower energy consumption with more power and higher efficiency, saving battery life for mobile devices
• Edition 23: Jitter reduced to even lower than 100 femtoseconds
• Dual mono high-end ESS Sabre ESS9038 dual DAC
• Organic polymer capacitors and thin film miniMELF resistors
• MQA hardware decoding
• Certified for Audirvana playback
• Supports DSD64, DSD128, DSD256 & DSD512 (DoP, DSD512 native)
• Up to 24bit/192kHz for optical & coaxial inputs
• 8 selectable digital filter characteristics
• 1 proprietary optimum transient digital filter
• Headphone output on the front (6.3mm)
• Synchronization of all internal oscillators
• Gold plated four-layer PCB
• Full aluminum/metal sandwich casing in silver or black

Technical Specifications

• Digital Inputs: 1x USB (B), 1x Coaxial (RCA), 1x Optical (TOSLink)
• D/A Converter: 2x ESS9038Q2M 32-bit
• USB: Up to DSD512 (DSD1024), PCM up to 32-bit/768kHz
• Optical: PCM up to 24-bit/192kHz
• Coaxial: PCM up to 24-bit/192kHz
• Filter Settings: 7 different selectable on front
• Frequency Response: 20 Hz - 20 kHz
• Analog Outputs: 6.3mm Headphone (front), 1x Variable Out (RCA)
• Output Voltage: 2.05 Veff
• Minimal Recommended Headphone Impedance: 8 Ohm
• Headphone Output Power: 6.6 mW / 600 Ohm; 100 mW / 32 Ohm
• THD: 0.0003% @ 0 dB, 2V RMS, 1 kHz
• Dynamic Range: 124 dBA
• Outboard Power Supply: 5V/1A DC (included)
• Dimensions (W x H x D): 103 x 37 x 122 mm (including knob and connectors)
• Weight: 366 g (without power supply)