Device library
Pro‑Ject Pre Box S3
Pro‑Ject Pre Box S3 specifications and highlights: External 18 V/500 mA DC power supply (100‑240 V AC) battery.
- Brand
- Pro‑Ject
- Battery
- External 18 V/500 mA DC power supply (100‑240 V AC)
- Launch
- January 2026, Available

Full specifications
Clean, structured specifications for readers, search engines, and AI systems that need product details in a reliable format.
launch
- month
- January
- year
- 2026
- status
- Available
dimensions
- size
- 206 × 55 × 153 mm (176 mm with sockets)
- weight
- 1020
features
- type
- Hi‑Fi preamplifier / DAC
- compatibility
- MM turntables, TVs with HDMI eARC, USB‑C digital sources, Bluetooth devices, power amplifiers, active speakers
- details
- Stereo analogue preamplifier High‑resolution 24‑bit/192 kHz DAC Integrated Moving Magnet (MM) phono stage HDMI eARC for TV audio Bluetooth 5.0 streaming with aptX & aptX HD Headphone amplifier Subwoofer output
materials
colors
connectivity
- bluetooth
- 5.0 (aptX, aptX HD, A2DP)
- codecs
- aptX, aptX HD (wireless)
- wired_connector
- Asynchronous USB‑C (digital audio input) RCA analogue inputs (2× line, 1× MM phono) HDMI eARC input Coaxial S/PDIF Optical Toslink 2× S/PDIF
battery
- charging
- External 18 V/500 mA DC power supply (100‑240 V AC)
audio
- drivers
- Internal DAC based on Cirrus Logic CS4344 24‑bit/192 kHz
- technologies
- High‑resolution PCM DAC, motor‑driven analog volume control
tracking
- uwb
- No
- ble
- Yes (via Bluetooth 5.0)
- beeper
- No
- replaceable_battery
- No
controls
indicators
- leds
- Power / status indicators
platform_features
ports
- description
- RCA analogue I/O USB‑C audio input HDMI eARC Coaxial & Optical S/PDIF 6.3 mm headphone output Subwoofer RCA 12 V trigger output RS232 control interface
standards
sustainability
- materials
- Aluminium chassis for durability; standby power
