Pro-Ject Releases Final Edition DAC Box RS with Exclusive Diamond ECC88 Tubes
By HiFi Editorial24 February 2026
Key Highlights
Features two high-end Diamond ECC88 tubes for rich and immersive audio quality.
Offers switchable tube and solid-state output stages for versatile sound profiles.
Includes robust connectivity options, supporting PCM up to 24-bit/192kHz and DSD128.
The Pro-Ject Audio DAC Box RS Final Edition has just been unveiled, marking the culmination of the popular DAC Box RS series. This compact yet formidable DAC is equipped with two specially selected Diamond ECC88 tubes, each valued at nearly 200 euros. These tubes are said to elevate the sound quality to an entirely new level, offering listeners a rich and immersive audio experience.
What's impressive is the meticulous selection of circuit components and the improved internal wiring. The analog stages are fully balanced, ensuring optimal signal integrity. For those who appreciate versatility, the tube output stage isn't mandatory; it can be engaged or bypassed with a simple press of a button on the front panel. This allows users to switch between the warm, relaxing character of tubes and the detailed, dynamic presentation of a Class A solid-state output.
