Pro-Ject Pre Box S2 Digital - Edition 23 - Dual-Mono DAC & Preamp

Features: Dual-mono high-end Sabre ESS9038 DACs Improved analog output stage (higher Class A current) Improved internal power supply design Up to 24bit/192kHz for optical & coax inputs DSD64, DSD128, DSD256 & DSD512 (DoP, DSD512 native) Improved, more powerful output stage for headphones Redesigned discrete audio master clock Less energy consumption, higher efficiency & more power Less demanding on mobile battery life Jitter levels below 100 femtoseconds Organic polymer capacitors and thin film miniMELF resistors MQA hardware decoding 8x selectable digital filter characteristics 1x proprietary optimum transient digital filter 1/4″ (6.3mm)headphone output Synchronization of all internal oscillators Gold-plated four layer PCB Full aluminum/steel sandwich chassis in silver or black Made in Europe Improved Edition of a Modern Pro-Ject Classic Since its release in 2017, our Pre Box S2 Digital quickly ascended to ‘exceptional’ status in the DAC market. It gained a reputation among digital audio enthusiasts for its remarkable ability to perform well beyond it’s price point. This achievement can be attributed to a combination of strengths in the design: a custom and proprietary clock design, meticulous PCB layout with discrete power supplies, dual-differential ESS DACs and an exclusive proprietary digital filter designed to deliver pristine and transparent transient response. Given its enduring demand, the chip crisis of 2020-2021 hit Pre Box S2 Digital particularly hard. At that time, Pro-Ject reconvened with the original designer, John Westlake, to implement key improvements that further enhance the design, thus rejuvenating the product almost exactly 5 years after its original introduction. Improved Internal Power Supply The power supply units (PSUs) of the clock, DACs, and analog output stages have undergone enhancements to offer increased isolation from PC-USB power noise and achieve a wider/flatter output impedance across the entire audio bandwidth. Redesigned Master Audio Clocks We have redesigned and improved the discrete audio master clocks. This lowers the phase noise and further enhances the already-cutting-edge jitter performance. New Output Stage with Higher Class A Current The new analogue output stage, based around the SABRE9603Q, has higher Class A operating current, for improved performance with low impedance headphones and long cable runs. New Headphone Amplifier The entire design is now more energy efficient. A 12% reduction in PSU current while also offering higher Class A analog stage operating current resulting in lower distortion when used with low impedance headphones. On-the-go users with mobile devices or laptops will also appreciate the lower power draw, and will simultaneously benefit from more power for the energy being drawn. Anyone using low-impedance headphones or in-ears monitors, whether in a mobile, home, or work environment will experience a notable boost in sound quality too. Unbeatable Value - Handmade in Europe Normally up to 70% of hi-fi production cost goes toward the chassis or cabinet. By reducing the cabinet size and using the same enclosure for entire product lines, Pro-Ject can focus our resources on improving components & technology of a given hi-fi product. this The Pre Box S2 Digital Edition 2023 is carefully designed and handmade in Europe. We aim to develop a technically flawless device in a housing that is only as big as necessary to save raw materials. Due to the timeless design & rigid aluminium casework, the Pre Box S2 Digital Edition 2023 is built for eternity. Specs Digital inputs: USB (B), coaxial (RCA), optical (TOSLink) D/A-converter: 2x ESS9038Q2M (32bit) USB: up to DSD512 (DSD1024), PCM up to 32bit/768kHz Optical: PCM up to 24bit/192kHz Coaxial: PCM up to 24bit/192kHz Filter settings: 7 options selectable on front Frequency response: 20Hz-20kHz Analog outputs: 1/4″ (6.3mm) headphone, variable RCA line out Output voltage: 2.05V Headphone impedance minumum: 8 ohms Headphone output power: 6.6mW @ 600 ohms, 100mW @ 32 ohms THD: 0.0003% @ 0dB, 2V RMS, 1kHz Dynamic range: 124dBA Outboard Power supply: 5V/1A DC (included) Dimensions (WxHxD): 103 x 37 x 122mm (including knob and connectors) Dimensions (standard): 4.06 x 1.46 x 4.80″ Mass (weight): 366g (0.81 lbs) without power supply