Pro-Ject Stream Box S2 Ultra
Pro-Ject Stream Box S2 Ultra Audio Streamer User Manual
Model: Stream Box S2 Ultra (QP382694)
1. Introdución
The Pro-Ject Stream Box S2 Ultra is a high-resolution audio network player designed to integrate digital music sources into your existing audio system. It supports various streaming services and offers multiple connectivity options for a versatile listening experience. This manual provides essential information for setting up, operating, and maintaining your Stream Box S2 Ultra.
2. Instrucións de seguridade importantes
- Lea estas instrucións atentamente antes de operar o dispositivo.
- Conserve estas instrucións para referencia futura.
- Ten en conta todas as advertencias do produto e das instrucións de funcionamento.
- Siga todas as instrucións.
- Non use este aparello preto da auga.
- Limpar só cun pano seco.
- Non bloquee ningunha abertura de ventilación. Instáleo segundo as instrucións do fabricante.
- Non instale preto de fontes de calor como radiadores, rexistros de calor, cociñas ou outros aparellos (incluíndo amplificadores) que producen calor.
- Protexa o cable de alimentación para evitar que se pise ou se pinche, especialmente nos enchufes, tomas de corrente e no punto de saída do aparello.
- Use só anexos/accesorios especificados polo fabricante.
- Desenchufe este aparello durante tormentas eléctricas ou cando non se use durante longos períodos de tempo.
- Encargue toda a reparación a persoal de servizo cualificado. O mantemento é necesario cando o aparello resultou danado dalgún xeito, como o cable de alimentación ou o enchufe está danado, se derrama líquido ou caen obxectos no aparello, o aparello estivo exposto á choiva ou á humidade, non funciona normalmente. , ou foi abandonado.
3. Contido do paquete
Please check that all items listed below are included in your product packaging:
- Pro-Ject Stream Box S2 Ultra unit
- Adaptador de alimentación
- Cable USB-C
- Auxiliary to Auxiliary Cable
- Coaxial to Auxiliary Cable
- Control remoto
- Manual de usuario (este documento)
4. Guía de configuración
Follow these steps to set up your Pro-Ject Stream Box S2 Ultra:
- Colocación: Place the Stream Box S2 Ultra on a stable, flat surface, away from direct sunlight, heat sources, and moisture. Ensure adequate ventilation around the unit.
- Conexión de alimentación: Connect the provided USB-C cable to the "Power" port on the rear of the Stream Box S2 Ultra and the other end to the power adapter. Plug the power adapter into a wall outlet.
- Conexión de rede:
- Wired (Recommended): Connect an Ethernet cable from your router to the "Ethernet" port on the rear of the Stream Box S2 Ultra.
- Sen fíos: The device supports Wi-Fi connectivity. Refer to the "Operating Instructions" section for details on connecting to a wireless network via the control app.
- Conexión de saída de audio: Connect the Stream Box S2 Ultra to your audio system (e.g., DAC, amplifier, soundbar) using one of the following methods:
- DAC: Use a USB cable to connect the "USB" port (labeled DAC) on the Stream Box S2 Ultra to your external Digital-to-Analog Converter (DAC).
- Óptica: Use an optical cable (not included) to connect the "Optical Out" port to your amplifier ou barra de son.
- Coaxial: Use the provided Coaxial to Auxiliary cable to connect the "Coax Out" port to a compatible input on your audio system.
- Analóxico: Use the provided Auxiliary to Auxiliary cable to connect the "Audio Out" (RCA) ports to an analog input on your ampmáis vivo.
- Encendido inicial: Once all connections are secure, press the power button on the front panel or the remote control to turn on the device.

Image: Rear panel connections of the Pro-Ject Stream Box S2 Ultra. This view highlights the various input and output ports including DAC, USB, Ethernet, HDMI, Power, and Bypass, essential for connecting the device to your audio system and network.
5. Instrucións de funcionamento
5.1. Métodos de control
- Controis do panel frontal: The Stream Box S2 Ultra features touch-sensitive buttons on its top panel for basic functions such as power, volume adjustment, and play/pause.
- Control remoto: Use the included remote control for comprehensive control over playback, volume, input selection, and other settings. The remote includes dedicated buttons for power, Wi-Fi, Bluetooth, playback controls (rewind, fast forward, play/pause), EQ mode, USB, and customizable buttons (1 and 2).
- Aplicación móbil: Download the dedicated control app (available for iOS and Android devices) to manage multiple devices, set up Wi-Fi connections, change audio input modes, and control playback.
5.2. Connecting to Streaming Services
The Stream Box S2 Ultra supports popular streaming services such as Spotify and TIDAL. Integration with these services is typically managed through the mobile control app. Follow the app's instructions to link your accounts and access your music library.
5.3. Roon Ready Functionality
The device is Roon Ready, allowing seamless integration with your Roon music management system. Ensure your Roon Core is set up and the Stream Box S2 Ultra is connected to the same network for discovery and control.

Imaxe: Fronte view of the Pro-Ject Stream Box S2 Ultra, highlighting its compatibility with various audio technologies and streaming services, including Roon, Spotify, and TIDAL, and its recognition with an EISA Best Product award.
6. Available Connections
The Stream Box S2 Ultra offers a variety of input and output options:
- USB (DAC): For connecting to an external Digital-to-Analog Converter.
- USB (PC): For connecting to a personal computer.
- Ethernet: Para conexión de rede por cable.
- HDMI: For video output (resolution 720p) or audio return channel (ARC) functionality.
- Saída óptica: Saída de audio dixital.
- Coax out: Saída de audio dixital.
- Saída de audio (RCA E/D): Saída de audio analóxica.
- Power (USB-C): Para entrada de enerxía.
- Bypass: Specific function for bypassing certain internal processing (refer to advanced settings in the app for details).
7. Especificacións técnicas
| Marca | Pro-Xect |
| Nome do modelo | Stream Box S2 Ultra |
| Número de modelo | QP382694 |
| Cor | Prata |
| Tecnoloxía de conectividade | USB, Ethernet, Wi-Fi, Bluetooth |
| Servizos de Internet compatibles | Spotify, TIDAL, Roon Ready |
| Tipo de controlador | Control remoto, aplicación móbil |
| Factor de forma | TV Box (Compact Audio Streamer) |
| Peso do elemento | 1.8 libras |
| Resolución de saída de vídeo | 720p (via HDMI) |
| Códec de vídeo | H.264, H.265/HEVC |
| Dispositivos compatibles | Personal Computer, External DACs, Amplifiers, Soundbars |
8 Solución de problemas
If you encounter issues with your Stream Box S2 Ultra, please refer to the following common solutions:
- Sen enerxía: Ensure the power adapter is securely connected to the device and a working power outlet. Check the USB-C cable for damage.
- Sen saída de son:
- Verify all audio cables are correctly connected to the appropriate input on your amplifier/DAC and output on the Stream Box S2 Ultra.
- Comprobe a selección de entrada no seu amplifier/DAC to ensure it matches the connected input from the Stream Box S2 Ultra.
- Confirm the volume level on both the Stream Box S2 Ultra and your audio system is not muted or set too low.
- If using a DAC, ensure it is powered on and functioning correctly.
- Problemas de conectividade de rede:
- Cablado: Check the Ethernet cable connection to both the Stream Box S2 Ultra and your router. Ensure your router is powered on and has an active internet connection.
- Sen fíos: Use the mobile app to reconfigure your Wi-Fi settings. Ensure the device is within range of your Wi-Fi router. Restarting your router may also resolve connection issues.
- App Not Connecting/Functioning:
- Ensure your mobile device and the Stream Box S2 Ultra are on the same network.
- Restart the app and the Stream Box S2 Ultra.
- Busca actualizacións da aplicación na tenda de aplicacións do teu dispositivo.
- Mala calidade de son:
- Asegúrate de usar cables de son de alta calidade.
- Comprobar o audio da fonte file quality. For optimal performance, use lossless audio formats.
- Minimize interference by keeping the Stream Box S2 Ultra away from other electronic devices.
9. Mantemento e coidados
- Limpeza: Empregue un pano suave e seco para limpar o exterior da unidade. Non empregue produtos de limpeza líquidos nin aerosois.
- Ventilación: Asegúrese de que as aberturas de ventilación non estean bloqueadas para evitar o sobrequecemento.
- Almacenamento: Se vai gardar o dispositivo durante un período prolongado, desconécteo da corrente e gárdeo nun lugar fresco e seco.
- Actualizacións de firmware: Periodically check for firmware updates through the mobile app or Pro-Ject's official websitio para garantir un rendemento óptimo e o acceso a novas funcións.
10. Garantía e soporte
The Pro-Ject Stream Box S2 Ultra comes with a manufacturer's warranty. Please refer to the warranty card included in your package or visit the official Pro-Ject websitio web para obter información detallada sobre os termos e condicións da garantía.
For technical support, troubleshooting assistance, or service inquiries, please contact Pro-Ject customer support or your authorized dealer. Contact information can typically be found on the Pro-Ject websitio web ou na documentación do produto.
Tamén poden estar dispoñibles recursos en liña e preguntas frecuentes na páxina web do fabricante website to help resolve common issues.
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