Stream Box RS

Project Stream Box RS

Media Player

Midland HiFi Studio - Key Information



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Overview & Features

Highend audio streamer, internet radio & D/A converter

Stream Box RS is Pro-Ject Audio‘s reference-class audio streamer, that goes far beyond the award winning audiophile grade highend 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 D/A converter for other digital sources, that use USB, coax and optical connection and as highend 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 highend ALPS potentiometer via IR remote and/or the new and advanced Android or iOS Apps.



24 bit / 192 kHz Hires Audio streaming client

Spotify Connect support (firmware or higher)

Lossless-Streaming with TIDAL

XLR & RCA output

Volume control via analogue alps potentiometer

Fully balanced double mono triode tube output stage

Top of the notch Highend PCM 1792A DAC

WAV, AIFF, FLAC, WMA9 lossless, ALAC & AAC

FLAC decoding for all 9 compression levels including Level 0 (data rate up to approximately 9 mbit/s)

1x digital coax & 1x digital poptic inputs

Gapless playback of all audio formats

Fixed analogue & digital coax outputs (RCA)

Search functionality fast forward back & alphanumeric

3,5“ colour display shows cover art and metadata

Multiple display languages

Wifi 802.11 b/g allowing real 24/192 over Wifi

Superlative rigid luxury alu cabinet

Special proprietary NetAPI implemented for fast access

Free Control APP (iOS & Android)

Technical Specification

Tube output stage: 

2 x E88CC (6922) for balanced and unbalanced out


Audio formats: 

MP3, FLAC (up to 24bit/192kHz including 24/176),

WMA9-lossless, AIFF, AAC, ALAC, LPCM (WAV, up to 24bit/192kHz), Ogg Vorbis 1.0






all audio formats (using IR control)




1x digital coaxial,

1x optical

2 x USB 2.0 (24/96, Type A), supports Flash- & Hard disk drives (FAT16&FAT32)


Output level

up to 8V RCA or 16V XLR (analog sources)

up to 2V RCA or 4V XLR (digital sources)




RCA (analogue)

Coax S/PDIF (digital)



115 dB @ 2V



Wi-Fi IEEE 802.11 b/g/n & Ethernet (10/100 BaseT)


External control:

Free Box Control APP available for iOS + Android



20V DC/1A


Power consumption: 

17W max HD-drive connected/ 0,3W Standby


Colour options: 

Black or silver



72 x 206 x 240 mm (HxWxD) including sockets and antenna



3250 g