Pro-Ject Pre Box S3

Product Summary

The Pro-Ject Pre Box S3 is a compact stereo preamplifier designed for customers who want one neat control centre for a modern hi-fi system. It is a strong option for customers who want to combine analogue, digital and wireless sources in one small component without losing the feel of a proper separates setup.

A big part of the appeal is the flexibility it offers. The Pre Box S3 includes MM phono, line-level analogue input, optical and coaxial digital inputs, HDMI eARC for TV sound and Bluetooth 5.0 with aptX HD, making it easy to build a system around vinyl, streaming devices, television audio and more. That makes it especially attractive for customers who want a compact preamp that can sit at the centre of a mixed modern system.

It is also designed to be useful beyond simple source switching. With a variable RCA output for your power amplifier, a fixed line output, a dedicated subwoofer output and a headphone output, the Pre Box S3 gives you a lot of real-world system flexibility in a very compact chassis. For customers wanting a small but very capable preamplifier with broad connectivity and genuine hi-fi usability, the Pre Box S3 is an excellent choice.

Key Benefits

• Compact control-centre design makes it easier to build a full hi-fi system without using a large full-width preamp
• MM phono input makes it easy to connect a turntable without needing a separate phono stage
• Optical, coaxial and eARC inputs make it a practical hub for TVs, CD transports and other digital sources
• Bluetooth 5.0 with aptX HD adds a higher-quality wireless listening option alongside wired sources
• Variable RCA output makes it easy to partner with a power amplifier or active speakers
• Fixed line output and dedicated subwoofer output add useful flexibility for broader system building
• Headphone output makes private listening simple without needing a separate headphone amp
• Strong choice for customers wanting a compact preamp with modern connectivity and genuine hi-fi flexibility
• 2 years manufacturers warranty, extended to 3 years if registered with Pro-Ject within 4 months of purchase

Technical Specifications

Preamplifier Details

• Product Type: Stereo preamplifier
• Analogue Inputs: 1 x phono MM, 1 x line RCA
• Digital Inputs: 1 x optical, 1 x coaxial, 1 x HDMI eARC
• Wireless Connectivity: Bluetooth 5.0 with aptX HD
• Outputs: Variable RCA output, fixed line output, subwoofer output, headphone output
• Function: Central control unit for analogue, digital and wireless sources
• Use Case: Suitable for turntables, streaming devices, CD transports and TV audio
• Colour Options: Silver or black
• Made In: Europe

Weight & Dimensions

• Dimensions: 20.6 x 7.2 x 15.3 cm (W x H x D)
• Weight: 1.08 kg without power supply

What’s in the Box

• Pro-Ject Pre Box S3 preamplifier
• Remote control
• Power supply
• Product documentation