WiiM ASR003
WiiM Pro Plus User Manual
Model: ASR003 | Brand: WiiM
Introduction
The WiiM Pro Plus is a versatile and high-fidelity audio streamer designed to integrate your existing audio systems with modern streaming capabilities. It supports a wide range of streaming protocols and services, delivering exceptional sound quality throughout your home. This manual provides essential information for setting up, operating, and maintaining your device.

The WiiM Pro Plus device shown with its included voice remote control.
Product Overview
The WiiM Pro Plus transforms your traditional stereo system into a smart, AirPlay 2 and Google Cast-enabled audio hub. It offers multiroom streaming, high-resolution audio playback, and seamless integration with popular voice assistants and music services. Its robust connectivity options ensure compatibility with a wide array of audio equipment.
Official video showcasing the WiiM Pro Plus AirPlay 2 Receiver and its features.
What's in the Box
Your WiiM Pro Plus package includes the following items:
- WiiM Pro Plus Unit
- Voice Remote x1
- User Guide x1
- USB Type-C Cable x1
- USB Power Adapter x1
- RCA to RCA stereo cable x1
- Digital Optical Audio Toslink Cable x1

All items included in the WiiM Pro Plus retail packaging.
Setup
Initial Connection
- Connect the WiiM Pro Plus to a power source using the provided USB Type-C cable and USB Power Adapter.
- Connect the WiiM Pro Plus to your stereo system or amplifier using the appropriate audio cables (RCA or Optical).
- Ensure your audio system is set to the correct input source.

The WiiM Pro Plus connects to a variety of audio devices including TVs, record players, CD players, amplifiers, DACs, headphones, and soundbars.
WiiM Home App Setup
The WiiM Home App is essential for controlling your device and accessing its full range of features.
- Download the WiiM Home App from your device's app store (iOS or Android).
- Open the app and follow the on-screen instructions to discover and connect to your WiiM Pro Plus.
- The app will guide you through connecting the device to your Wi-Fi network.
- Pair the included voice remote with your device as prompted by the app.
A video guide demonstrating the setup process using the WiiM Home App.
Operating Instructions
Seamless Streaming
The WiiM Pro Plus supports various streaming technologies for a rich audio experience:
- AirPlay 2: Stream audio from iOS and Mac devices, or TV audio from Apple TV, directly to your stereo system.
- Google Cast Audio: Stream music, TV audio, podcasts, and more from hundreds of Google Cast-enabled apps.

AirPlay 2 allows easy streaming from Apple devices to your WiiM Pro Plus.

Google Cast Audio supports streaming from hundreds of popular applications.
Direct Streaming from Apps
Stream music directly from your favorite music apps like Spotify, TIDAL, or Amazon Music using their respective Connect features (Spotify Connect, TIDAL Connect, or Alexa). This provides superior audio quality and a longer working range compared to traditional Bluetooth connections.

Stream directly from your preferred music apps for enhanced audio quality.
Multiroom Streaming
Enjoy synchronized music playback across multiple audio devices in your home. The WiiM Pro Plus supports AirPlay 2, Google Cast, Amazon Alexa, and its proprietary multiroom function. Create groups with other compatible devices like Echo, HomePod, or multiple WiiM units.

Synchronize music playback across multiple rooms for a seamless listening experience.
Voice and Preset Features
Control your WiiM Pro Plus using voice commands via Alexa, Google Assistant, or Siri. The included voice remote allows for easy control of playback, volume, and more. You can also launch preset content with a single tap for quick access to your favorite music.

Control your device hands-free using voice commands through compatible assistants.
Connections and Ports
The WiiM Pro Plus offers a comprehensive set of input and output ports for versatile connectivity:

Rear panel of the WiiM Pro Plus with various audio and network connections.
- Line In (RCA): Connect external audio sources like CD players or turntables (requires a phono preamp for turntables).
- Line Out (RCA): Connect to your amplifier or powered speakers.
- SPDIF In (Optical): Digital audio input for devices like TVs or game consoles.
- SPDIF Out (Optical): Digital audio output for connecting to an external DAC or amplifier.
- Coax Out: Coaxial digital audio output for high-quality digital connections.
- LAN (Ethernet): Wired network connection for stable streaming.
- Trigger Out: For controlling compatible external devices.
- Mic: Microphone input (for specific functionalities).
- Power (USB-C): Power input for the device.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 5.5 x 5.5 x 1.6 inches (5.91"D x 5.91"W x 1.61"H) |
| Item Weight | 14.1 ounces |
| Model Number | ASR003 |
| Connectivity Technology | Bluetooth, Wi-Fi, Ethernet |
| Controller Type | Google Assistant, Amazon Alexa, App Control |
| Compatible Devices | Speaker, DAC, Amplifier, Mobile phone, Tablet, HomePod, Apple TV, Echo, Google Home |
| Connector Type | USB Type-C, RCA, SPDIF (TOSLINK), COAX, ETHERNET |
| Audio Output Mode | Stereo |
| Color | Black |
| Manufacturer | Linkplay Technology Inc. |
| Country of Origin | China |
Maintenance
To ensure the longevity and optimal performance of your WiiM Pro Plus, follow these maintenance guidelines:
- Keep the device in a dry, dust-free environment.
- Clean the exterior with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
- Ensure proper ventilation around the device to prevent overheating.
- Avoid placing heavy objects on top of the unit.
Troubleshooting
If you encounter issues with your WiiM Pro Plus, try the following common solutions:
- No Sound: Check all cable connections (power, audio input/output). Ensure your audio system is set to the correct input. Verify volume levels on both the WiiM app and your audio system.
- Connection Issues: Ensure your Wi-Fi network is stable. Restart your router, the WiiM Pro Plus, and your controlling device (smartphone/tablet). Try re-pairing the device through the WiiM Home App.
- App Not Responding: Close and reopen the WiiM Home App. If the issue persists, restart your smartphone/tablet.
- Voice Control Not Working: Ensure your voice assistant (Alexa, Google Assistant, Siri) is properly linked to your WiiM account in the WiiM Home App. Check your internet connection.
Warranty and Support
For detailed warranty information and technical support, please refer to the official WiiM resources:
- User Manual (PDF): For comprehensive instructions and troubleshooting, download the User Manual (PDF).
- WiiM Brand Store: Visit the official WiiM Brand Store for product updates and additional support.
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