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, coaxial 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.

Stream Box S2: tiny, compact and advanced

Today‘s market is getting overcrowded with lots of wireless streamers. Most of them are only focused on a good App, but the real sound quality is determined by the quality of the DAC and the analogue audio output stage. Also, from an esthetical viewpoint, many of the streamers are just plastic boxes and no amp or other components are in it. In recent times Pro-Ject has been producing the some of the best micro high-end amps on the market, like the Maia S2 or the Stereo Box S2. For these products we developed a fitting streamer, which matches the sound quality and aesthetics of These amplifiers. It is very easy to use per App and has all features of modern-day streamers , including proper multiroom functionality! It offers support for high resolution data up to 24bit / 192kHz, as well as the possibility to connect to multiple Stream Box S2 Multi to form a multiroom setup. The multiroom stream quality remains on CD quality (16 Bit/ 44.1 kHz) which, for multiroom applications, is an enormous amount of data and great audio quality. The possible zones are limited to 10 or 6 zones (Ethernet or WiFi) to ensure a flawless transmission considering the high data rates. Usually multiroom devices which offer a high number of zones are data reduced to max. MP3 quality to ensure a flawless stream. Moreover, two units can also be connected to build a stereo pair (with assigned left and Right channel). If you have active speakers you can create wireless speakers, by placing the Stream Box S2 right next to them. You can then freely place the speakers in your room and do not need to worry about long cable lines anymore. This allows you for greater flexibility, when you want to set up a bigger lobby or event room with great sounding Background music.

Three different outputs guarantee a flexible solution for every audio chain. A line level RCA output can be connected to a pre-amplifier for purest signal, a dedicated variable output can be connected to active speakers or power amplifiers. The optical output can further pass a digital signal to an external DAC. The Stream Box S2 comes fully equipped with TIDAL and Spotify. With the implementation of Shairport we were even able to give iDevice users out there another possibility to send data to the Stream Box S2. Friends of internet radio will find satisfaction in TuneIn.

We live in a modern world!

With the Stream Box S2 Ultra we have designed a completely new product in the streaming world. It features never seen control scenarios and unprecedented audio performance. Its main goal is to be a universal device that can get any USB DAC into the network, upgrading your favourite high-end DAC with modern and future proof streaming capabilities.

With the gaining ground of internet streaming services, such as TIDAL or Spotify, the consumer‘s interest has shifted towards network enabled devices. Many great sounding products though do not offer any network ability, either because they are too old or their main focus was not on this subject. The solution has often been to replace them with a new and modern device, stream audio via BT or to comprimise and use a smartphone or tablet via their analogue ouput to feed active speakers or amplifiers.
There never was a really good solution for the consumer. Untill now.

Stream Box S2 Ultra: the smart addition

Stream Box S2 Ultra closes the gap, it offers modern connectivity with its network inputs and USB A output. This USB output is perfectionized for audio signals, it uses a dedicated internal power supply and only top audiophile grade components. You won‘t run into file-support issues, as Stream Box S2 Ultra acts as a network bridge, bypassing the files directly to your digital to analogue converter. Since most DACs only have one USB input, we have designed Stream Box S2 Ultra also to be a USB detox device. Simply connect your PC to the micro USB input of the unit and connect our DAC to the audio output. This way you can clean the noisy signal of your PC, while enjoying your music with it.
Our new remote control iOS and Android App is based on an opensource project and has a large community behind it. This guarantees full support and future improvements.

Stream Box S2 Ultra: feature galore!

Stream Box S2 Ultra is fully remoteable via smart devices and a regular web-browser. It offers support for the most popular streaming services: Spotify, TIDAL, Qobuz, HRA Streaming. These services offer you a sheer endless amount of music, guaranteeing you, that you never run out of music to listen to. By implementing TuneIn, we also give you the option to listen to various internet radio stations. You can listen to your favourite radio shows, the news and discover new channels from all around the world – with just a few clicks.

The back-sided HDMI video output lets you connect your monitor to the Stream Box S2 Ultra. It will then show you the graphic user interface, ready to act on your commands. With the implementation of Shairport we were even able to give the iDevice users out there another possibilty to send data to our Stream Box S2 Ultra.

There are two USB inputs on Stream Box S2 Ultra, one front sided and one back sided. Both give you the possibility to connect an external harddrive to the unit. Via one of the various control scenarios (App, Webbrowser, external monitor) you can pick from your own selection of audio. The file system support goes up to PCM 32bit / 352.8 kHz and DSD256.

Here at Pro-Ject, we are big supporters of the Roon software, that is why we wanted the Stream Box S2 Ultra to be Roon Ready and fully certified. This way you can simply pick your Stream Box S2 Ultra in the Roon interface and send bit-perfect audio streams to it over your network.

This incredible feature set makes Stream Box S2 Ultra bullet-proof for all future events. Together with Pre Box S2 Digital they become the most versatile and audiophile set in its price class.