Pro-Ject Pre Box RS2 Digital

The Pre Box RS2 Digital allows you to toggle between a solid-state buffer and 6922 vacuum tubes. The solid-state mode provides a precise, neutral, and highly detailed sound, while the tube mode adds warmth, texture, and a more organic, holographic presentation to your music.

Yes, the unit features a high-quality, DC-coupled headphone amplifier capable of driving a wide range of headphones. It provides 245 mW into 32 ohms and 90 mW into 300 ohms, ensuring sufficient power for most demanding audiophile headphones.

By using two ESS9038Q2M DAC chips—one dedicated to each channel—the device achieves superior channel separation and a wider, more accurate soundstage. This design minimizes crosstalk and ensures that the left and right audio signals remain completely isolated for maximum clarity.

Yes, the Pre Box RS2 Digital features full MQA hardware unfolding. This allows you to experience high-resolution MQA files exactly as the artist intended, without relying on software-based decoding.

It is highly versatile, offering nine digital inputs including USB 2.0, HDMI I²S, AES/EBU, and both optical and coaxial S/PDIF. This allows you to connect a wide variety of digital sources, from high-end streamers and CD transports to computers.

The I²S input via HDMI is designed to bypass the standard digital signal processing stages, allowing for a direct, jitter-free connection between compatible digital sources and the DAC. This often results in a cleaner, more transparent audio signal compared to traditional S/PDIF connections.