Stream Box RS is Pro-Ject Audio‘s reference-class audio streamer, which goes far beyond the award-winning audiophile-grade high-end audio streaming client Stream Box DSnet, Ready for use with streaming service Spotify and lossless audio music platform TIDAL. Other streaming services like Deezer, Grooveshark, etc, can be implemented using 3rd party applications. Additional to the streaming functionality. Stream Box RS also acts as a D/A converter for other digital sources, that use USB, coaxial and optical connection and as a high-end pre-amplifier with 1 additional analogue sound source! The audio circuitry is using E88CC tubes for ultimate fidelity and components, that guarantee extremely low noise and distortion levels. Volume control is done by a motor-driven ultra-high-end ALPS potentiometer via IR remote and/or the new and advanced Android or iOS Apps.