It only has a width of 13 cm, but can access the streaming services Spotify, Deezer, Tidal, Qobuz, Amazon Music as well as web radio via Ethernet or Wi-Fi. For streaming in a home network, it supports the DLNA and Airplay protocols as well as the audio formats FLAC, WAV, ALAC, AAC and MP3, and even has multi-room capabilities. Conversion from digital to analog is done with a Burr-Brown PCM1796 DAC chip, which can work with resolutions of up to 24 bits and 192 kHz. The coaxial and optical digital outputs can also work with this resolution.
A Bluetooth dongle can also be connected optionally. The highlight is to be found in form of the miniature Raytheon 5703 tubes, which sit in the Class A output stage and are visible through a small window in the front of the device. The WTX Stream Tubes is operated via the free Advance Playstream app.