Centralpiec Of Your System

With an impressive total of 13 inputs and outputs, the Pro-Ject Pre Box S3 functions as the central hub of even the most advanced audio setup. From a television and turntable to a PC and smartphone via Bluetooth, this compact preamplifier links all sources with ease and consistency. Premium internal components are used throughout, including a high-resolution 24-bit/192kHz digital-to-analogue converter for precise signal conversion. This ensures a clean, transparent sound character that remains faithful across all connected devices and listening scenarios.

Dual Mono Architecture for Accurate Imaging

Designed with high-tolerance components, the Pre Box S3 delivers realistic sound with extremely low distortion and excellent channel separation. Its dual mono circuit layout processes left and right signals independently, improving spatial accuracy and stereo definition. This design allows instruments to occupy clearly defined positions within the soundstage. As a result, the listening experience feels more open, immersive, and dynamically balanced.

High-Resolution Digital Audio Performance

Equipped with a multi-bit Delta-Sigma 24-bit DAC, the Pre Box S3 is optimized for modern digital playback and high-resolution audio files. It is especially well suited for extracting maximum detail from Hi-Res music libraries stored on computers and digital transports. Precise internal clock management minimizes jitter and timing errors. This contributes to a smooth, natural presentation that accurately reflects the tonal character of each recording.

Flexible Outputs for Speakers and Headphones

The Pre Box S3 offers exceptional system flexibility, allowing seamless integration with a wide range of audio configurations. A variable output enables direct connection to a power amplifier, while a fixed 3.5mm output is ideal for active speakers. Headphone listeners benefit from the front-mounted 6.3mm socket for private listening. Additionally, a dedicated subwoofer output is included, making low-frequency reinforcement easy when using compact satellite speakers.

Direct Connection for Turntables

Thanks to its integrated MM phono stage, the Pre Box S3 can be connected directly to many turntables without requiring an external phono preamp. This simplifies system setup while maintaining signal integrity. Two additional analogue line inputs are also provided for sources such as CD players or FM tuners. This makes it suitable for both modern and traditional audio systems.

TV Integration via HDMI eARC

By connecting a television through HDMI eARC, the Pre Box S3 allows your main audio system to handle TV sound without the need for a separate soundbar. The enhanced Audio Return Channel supports volume control via the TV’s existing remote control for convenience. Optical and coaxial digital inputs are also available if HDMI ports are limited. This ensures compatibility with a wide variety of televisions and media devices.

USB-C Connection for Computer Audio

For high-quality computer playback, the USB-C input allows direct connection to laptops, desktops, tablets, or smartphones. This interface supports audio files up to 24-bit/192kHz, ensuring full resolution playback. It provides a stable and noise-free digital signal path. This makes it an excellent choice for both desktop audio systems and modern workstations.

Integrated Bluetooth Connectivity

Built-in Bluetooth enables wireless playback from smartphones, tablets, or other compatible devices. This is particularly useful when physical cabling is impractical or when streaming from across the room. Support for aptX and aptX HD codecs ensures improved sound quality compared to standard Bluetooth connections. Wireless listening remains clear, detailed, and convenient.