1. Introduction
The Auris Audifi AU148 is a high-fidelity WiFi music receiver designed to integrate seamlessly with your existing stereo amplifier or powered speakers. It enables high-resolution audio streaming and multi-room capabilities, allowing you to access a vast world of music streaming services and internet radio stations in 24-bit Hi-Res audio. The Audifi AU148 can function as a standalone streamer or be grouped with other compatible players for a synchronized multi-room listening experience.
Image 1.1: The Auris Audifi AU148 WiFi Music Receiver, a compact black device with two antennas.
2. Safety Information
- Do not expose the device to water, moisture, or extreme temperatures.
- Avoid placing the device near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Use only attachments/accessories specified by the manufacturer.
- Unplug the device during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
3. Package Contents
Please check the box for the following items:
- Auris Audifi AU148 Unit
- Power Adapter
- Remote Control
- RCA Audio Cable
- Optical Audio Cable
- User Manual (this document)
4. Product Overview
4.1 Front Panel
The front panel features a 1.3-inch OLED screen that displays connection status, song name, and other relevant information during operation.
Image 4.1: Front view of the Audifi AU148, showcasing its minimal design and OLED display.
4.2 Rear Panel (Connectivity)
The rear panel provides a comprehensive suite of input and output options for versatile connectivity:
- LINE IN (RCA): Analog audio input for connecting external devices like CD players or TVs.
- OPT IN: Optical digital audio input.
- LINE OUT (RCA): Analog audio output to connect to your amplifier or powered speakers.
- OPT OUT: Optical digital audio output.
- COAX OUT: Coaxial digital audio output.
- SUB OUT: Dedicated subwoofer output.
- LAN/USB: Ethernet port for wired network connection and USB port for local media playback.
- DC 12V/1A: Power input for the included power adapter.
- RESET: Reset button.
- BT Antennas: Two antennas for WiFi and Bluetooth connectivity.
Image 4.2: Rear view of the Audifi AU148, showing its extensive range of analog and digital input/output options.
4.3 Remote Control
The Audifi AU148 comes with a full-functional IR remote control for convenient operation. Key functions include power on/off, volume control, input selection, playback controls (play/pause, skip), and bass/treble adjustments.
Image 4.3: The Audifi AU148 remote control alongside a smartphone displaying the 4Stream control app.
5. Setup
5.1 Physical Connection
- Connect to your Audio System: Use the provided RCA, Optical, or Coaxial cables to connect the Audifi AU148's LINE OUT, OPT OUT, or COAX OUT to the corresponding input on your amplifier, AV receiver, or powered speakers. For subwoofer connection, use the SUB OUT port.
- Connect External Audio Sources (Optional): If you wish to use the Audifi AU148 as an input hub, connect external devices like a TV or CD player to the LINE IN, OPT IN, or COAX IN ports.
- Connect Power: Plug the included power adapter into the DC 12V/1A port on the Audifi AU148 and then into a wall outlet.
5.2 Network Connection
The Audifi AU148 supports both WiFi and Ethernet connectivity.
WiFi Connection (Recommended)
- Download the 4Stream App: Search for "4Stream" in the Apple App Store (iOS) or Google Play Store (Android) and install it on your smartphone or tablet.
- Power On the Audifi AU148: Ensure the device is powered on. The OLED display will show status information.
- Connect to Audifi's WiFi: On your mobile device, go to WiFi settings and connect to the network named "Audifi_XXXX" (where XXXX is a unique identifier).
- Open 4Stream App: Launch the 4Stream app. It will guide you through connecting the Audifi AU148 to your home WiFi network. Select your home WiFi network and enter the password.
- Wait for Connection: The Audifi AU148 will connect to your home network. Once connected, the device will be ready for streaming.
Ethernet Connection (Wired)
For a stable wired connection, plug an Ethernet cable from your router into the LAN/USB port on the Audifi AU148. The device will automatically connect to your network.
Image 5.1: The Audifi AU148 positioned on top of a Marantz stereo receiver, illustrating a typical setup.
6. Operating Instructions
6.1 Using the 4Stream Control App
The 4Stream app is the primary interface for controlling your Audifi AU148, managing music, and setting up multi-room audio.
- Device Management: The app allows you to see all connected Audifi devices, rename them, and manage their settings.
- Music Services: Access integrated music services such as Spotify, Amazon Music, TIDAL, Qobuz, iHeartRadio, TuneIn, and more directly from within the app.
- Local Music Playback: Stream music from your device's local library or connected USB storage.
- Multi-Room/Multi-Zone Streaming: Group multiple Audifi devices together to play the same music synchronously across different rooms, or play different music in different zones.
Image 6.1: The 4Stream app interface demonstrating multi-room audio control, allowing users to group devices like 'Living Room', 'Kitchen', and 'Bedroom'.
6.2 Bluetooth Connectivity
The Audifi AU148 features Bluetooth 5.0 with aptX HD for high-definition wireless streaming from your phone or tablet.
- Switch to Bluetooth Mode: Use the remote control or the 4Stream app to select Bluetooth as the input source.
- Pair Your Device: On your mobile device, enable Bluetooth and search for "Audifi AU148". Select it to pair.
- Start Streaming: Once paired, you can stream audio from any app on your mobile device to the Audifi AU148.
6.3 AirPlay and Spotify Connect
The Audifi AU148 supports Apple AirPlay and Spotify Connect, allowing direct streaming from compatible applications without needing the 4Stream app.
- AirPlay: From an iOS device or iTunes on a computer, select the AirPlay icon and choose your Audifi AU148 from the list of available devices.
- Spotify Connect: Within the Spotify app, select the 'Devices Available' icon and choose your Audifi AU148 to stream directly.
Image 6.2: A smartphone screen displaying logos of various supported streaming services, including Spotify, Amazon Music, TIDAL, Qobuz, and more.
6.4 High-Quality Audio Playback
The Audifi AU148 incorporates a high-quality ESS Sabre digital-to-analogue converter (DAC) to ensure pristine audio reproduction. It supports 24-bit high-definition music streaming, delivering a powerful and sonically pure audio experience with a high dynamic range (DNR) of 112dB.
Image 6.3: The Audifi AU148 unit with text emphasizing its high-quality ESS Sabre DAC for premium audio.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the Audifi AU148. Do not use liquid cleaners or aerosol sprays.
- Storage: If storing the device for an extended period, disconnect it from power and store it in a cool, dry place.
- Antennas: Handle the antennas with care to avoid damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power adapter not connected or faulty outlet. | Ensure power adapter is securely connected to the device and a working power outlet. Try a different outlet. |
| No sound output | Incorrect input/output selection; volume too low; cables loose. | Verify the correct input source is selected on your amplifier/speakers. Check Audifi's output selection. Increase volume on both Audifi and your audio system. Ensure all audio cables are securely connected. |
| WiFi connection issues / App is slow | Incorrect WiFi password; network interference; app glitch. | Double-check your WiFi password during setup. Restart the Audifi unit and your router. Close and reopen the 4Stream app, or reinstall it if issues persist. Ensure your mobile device is on the same network as the Audifi. |
| Bluetooth pairing failure | Audifi not in pairing mode; device already paired; interference. | Ensure Audifi is in Bluetooth input mode. Turn off Bluetooth on other nearby devices. Try restarting both the Audifi and your mobile device. |
| Distorted audio at high volume | Input signal too strong; amplifier clipping. | Reduce the volume level on the Audifi AU148. Adjust bass/treble settings on the Audifi or your amplifier to prevent overdriving speakers. |
| Multi-room sync issues | Network latency; device distance from router. | Ensure all Audifi units have a strong and stable WiFi connection. Consider using an Ethernet connection for critical units or a WiFi extender. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | AU148 |
| Product Dimensions | 4.72"D x 4.45"W x 1.46"H (120mm x 113mm x 37mm) |
| Item Weight | 14.6 ounces (414 grams) |
| Connectivity Technology | Bluetooth (aptX HD), Ethernet, RCA, Wi-Fi |
| Controller Type | Android, iOS (4Stream App) |
| Special Features | Multiroom, Spotify Connect, Apple AirPlay, ESS Sabre DAC |
| Compatible Devices | Smartphone, Tablet, Stereo Amplifiers, Powered Speakers |
| Connector Type | Coaxial, Optical, RCA, USB, Ethernet |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 4.0 or 4.1 (with subwoofer output) |
| Color | Black |
| Manufacturer | Auris, Inc. |
Image 9.1: Diagram illustrating the dimensions of the Auris Audifi AU148 unit.
10. Warranty and Support
For warranty information and technical support, please refer to the official Auris website or contact Auris customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
For the most up-to-date support resources, visit the Auris support page or contact their customer service team through the contact information provided with your product or on their official website.
