Stream Box S2 Ultra
Connect the Stream Box S2 Ultra to your system via USB to enjoy all the quality and convenience of high-resolution audio streaming.
The Stream Box S2 Ultra has everything you could want ready to go: listen to TIDAL, Spotify and internet radio via Shoutcast, or stream your local music files directly using the smartphone app.
Want to stream from your iOS device? The Stream Box S2 Ultra even has Shairport (AirPlay) built-in! Plus, it’s Roon Ready, to help you integrate even more gear into your whole-home audio system.
Designed by the Master
Designed by hi-fi legend John Westlake, the Pro-Ject Stream Box S2 Ultra is a simple, effective way to link your traditional hi-fi with your digital music, adding a host of features and sources that come neatly packaged in a palm-sized chassis.
The Perfect Pair
We recommend pairing the Pro-Ject Stream Box S2 Ultra with the world's smallest MQA unfolding DAC, the Pro-Ject Pre Box S2 Digital.
This award winning combination will bring any age of amplifier into the 21st century. Allowing you to unlock technology like Roon, TIDAL, Spotify, MQA, Hi-res streaming on your older amplifier for the very first time.
Award-Winning Design
Think of it as a powerful network bridge that routes your music from a multiplicity of sources. Just plug in a DAC and the Stream Box S2 Ultra plays music from a hard disk via its USB-A inputs, Bluetooth aptX and online streaming services such as TIDAL, Spotify and Shoutcast, plus DLNA or Wi-Fi-connected NAS drives.
It’s Roon Ready and there’s also an HDMI video output. There’s also a handy control app for iOS and Android, and savvy users can even customise the system to their needs. Working at up to 352.8kHz/32-bit PCM and DSD256, it’s future-proofed, too.
- EISA, Expert Imaging & Sound Association
Key Features
- High resolution network bridge
- Audio optimised USB A output
- Multi-room enabled
- Dual USB A input for external storage
- TIDAL, Spotify, Internet Radio, Bluetooth & High Res Audio Streaming
- Network-enables any modern DAC with USB input
- Cleans up the audio signal from a PC
- Fully Roon Ready and certified
- CD ripping (requires external USB CD drive)
- HDMI video output
- Ethernet and Wi-Fi connectivity
| Specifications | |
| Audio Formats | PCM 32 bit/352.8 kHz, DSD256 |
| Internet Radio | TuneIn |
| Streaming Services | TIDAL, Spotify, Qobuz |
| Supported Data Protocols | RAAT, Shairport, DLNA |
| Multi-Room | Up to Six Devices |
| Inputs | 2 x USB A, Micro USB B (PC-Detox), Network (Ethernet, Wi-Fi), Bluetooth |
| Wi-Fi 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 Optimised USB A, HDMI (Video) |
| Control Options | App, Web Browser, Roon |
| Dimension W x H x D | 105 x 37 x 105 mm |
| Weight | 375 g (Without Power Supply) |
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