Pro-Ject Stream Box S2 Ultra silver

The Pro-Ject Stream Box S2 Ultra is a network audio player designed as a bridge between the analog and digital worlds. Its primary function is to enable any USB DAC to access the network, thereby adding modern streaming capabilities to your favorite converter. It supports a wide range of audio formats, including PCM up to 32-bit/352.8 kHz and DSD256, ensuring maximum compatibility with high-resolution files.

Unlimited Connectivity

Equipped with extensive connectivity options, the Stream Box S2 Ultra adapts to all usage scenarios. It features an Ethernet connection for optimal stability, as well as Wi-Fi for greater flexibility. Bluetooth is also included, allowing quick streaming from your mobile devices. On the output side, there is an audio-optimized USB-A port designed to connect directly to your external DAC.

A Complete Audio Ecosystem

Pro-Ject designed the Stream Box S2 Ultra to be the centerpiece of a modern audio system. It is compatible with major streaming services like Spotify, Tidal, and Qobuz. Its Roon Ready certification makes it an ideal choice for users of this audiophile platform. Additionally, its DLNA/UPnP compatibility allows easy access to music libraries stored on your local network or external hard drives connected via USB.

An Intuitive User Interface

The Stream Box S2 Ultra is primarily controlled via the Pro-Ject Play app, available on iOS and Android. This interface provides easy access to all the device’s features, including managing streaming services, browsing your music library, and controlling playback. For those who prefer a larger interface, an HDMI output allows the interface to be displayed on an external screen.

Pure, Uncompromised Sound

Although the Stream Box S2 Ultra does not include a built-in DAC, it is designed to preserve the integrity of the audio signal as much as possible. Its USB output uses a dedicated power supply and high-quality components to minimize noise and interference. Additionally, its “USB Detox” function cleans the USB signal coming from a computer, eliminating potential noise before it reaches your DAC.

The Perfect Companion for Your DAC

The Stream Box S2 Ultra is often paired with Pro-Ject’s Pre Box S2 Digital, forming a powerful and compact combination. However, its versatility allows it to integrate seamlessly with any USB DAC on the market, offering great flexibility for audiophiles looking to modernize their existing setup.

Technical Specifications

Key Features

• High-resolution network bridge
• Connects any modern digital-to-analog converter (DAC) with a USB input to a network
• Cleans the audio signal from a computer
• Multi-room compatible (up to six devices)
• Controllable via mobile devices and computer
• New control application

Connectivity

• Inputs: 2 × USB A, Micro USB B (computer noise filtering), Ethernet, Wi-Fi
• Outputs: Audio-optimized USB A, HDMI (video)
• Dual USB A input for external storage
• Ethernet and Wi-Fi connectivity

Formats and Compatibility

• Audio: PCM 32-bit / 352.8 kHz, DSD256
• Streaming services: TIDAL, Spotify, Qobuz
• Internet Radio: TuneIn
• Protocols: Roon Ready, AirPlay (Shairport), DLNA, Bluetooth
• DLNA compatible
• Direct transmission of all audio formats to the converter

Power and Physical Characteristics

• Uses dedicated power supplies
• Weight: 375 g (excluding power supply)
• Dimensions: 105 × 37 × 105 mm (W × H × D)

Control

• Dedicated application
• Web browser
• Roon
• Mobile devices
• Computer