Pro-ject Audio Systems - USA Pre Box S3

Your all-in-one control centre

The Pre Box S3 is a highly versatile stereo preamplifier designed to unite analogue, digital, and wireless sources in a single compact component. It combines audiophile sound quality with extensive connectivity, making it an ideal control centre for modern high-fidelity systems that include turntables, streaming devices, and TV.

Finish

Black

High Fidelity Listening Experience

Our audiophile analogue and digital circuitry is engineered for maximum signal purity and musical authenticity. The low-noise analogue design is carefully optimised with short signal paths to preserve dynamics, tonal balance, and fine detail without unnecessary processing. High-resolution digital sources are converted via a premium 24-bit/192 kHz DAC with precise internal clocking for low jitter and accurate timing, while strict separation of digital and analogue sections prevents noise from degrading the signal. The result is a clean, natural, and engaging sound that faithfully reflects the character of every source.

Versatile In- and Outputs

The Pre Box S3 offers all modern connectivity to act as your central Hi-Fi stereo hub. You can also connect digital sources like your TV via eARC or a CD transport via the coax or optical S/PDIF inputs and use the internal DAC with a quality up to 24bit and 192kHz. It also provides versatile output options. The variable RCA output is connected to your power amp. A seperate fixed line-level output allows you to forward the connected sources to your external headphone amplifier or second zone. Connect your subwoofer via the dedicated sub-output. Trigger connectivity for remote turn on/off is included next to a very versatile RS232 connector for custom installation remote control.