The main goal of the Stream Box S2 Ultra design is to be a universal device that can get any USB DAC into the network, upgrading your favorite 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 products, however, do not offer any network capability.
Stream Box S2 Ultra closes the gap, offering modern connectivity with its network inputs and USB A output. This USB output is optimized 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 DAC.
Pro-Ject is a big supporter of Roon software, and the Stream Box S2 Ultra has been designed to be Roon Ready. This way you can simply select your Stream Box S2 Ultra in the Roon interface and send bit-perfect audio streams to it over your network.
The incredible feature set offered by the new Stream Box S2 Ultra makes it effectively future-proof, making it one of the most versatile audiophile products in its price class.
Stream Box S2 Ultra is fully controllable via smart devices and a regular web-browser. It offers support for the most popular streaming services: Spotify and TIDAL. By implementing Shoutcast, Pro-Ject also gives you the option to listen to various internet radio stations. You can listen to your favorite radio shows, the news and discover new channels from all around the world – with just a few clicks.
The back-panel of the Stream Box S2 Ultra features a micro-USB connector marked “Bypass” and allows the user to connect the unit to a computer or laptop and to “detox” the USB output from the computer before it reaches D/A converter. This will clean-up the signal coming from your PC or laptop (the unit must be connected to a DAC).
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, Pro-Ject was even able to give the iDevice users out there another way 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 ability to connect an external hard drive 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.
|Audio Formats||PCM 32bit/352.8kHz, DSD256|
|Streaming Services||TIDAL, Spotify|
|Supported data protocols||RAAT, Shairport, DLNA|
|Multi-room||Up to six devices|
|Inputs||2 x USB A|
|Micro USB B (PC-Detox)|
|Network (Ethernet, WiFi)|
|WiFi Standards||802.11 b/g/n/d/e/h/i|
|Bluetooth||Bluetooth Classic + EDR v2.1, v3.0, v4.0 and Low Energy|
|Outputs||Audio optimized USB A|
|Controllable via||App, Web Browser, Roon|
|Weight||375 g (without power supply)|
|Dimensions (WxHxD)||105 x 37 x 105 mm|