Up2Stream Amp V4 Wireless Audio Amplifier Board User Manual

1. Introduction

The Up2Stream AMP v4 is a WiFi and Bluetooth 5.0 stereo/mono amplifier board designed to integrate into existing audio systems, enabling wireless capabilities. It also serves as an all-in-one solution for DIY enthusiasts to create custom wireless audio systems. The Up2Stream AMP v4 supports switching between stereo and mono modes. In stereo mode, it provides a maximum of 50W per channel (L&R), while mono mode mixes L&R channels for a single maximum 100W output. Once connected to your home network, the 4Stream app allows you to play music from your mobile device, NAS, USB pen drive, or online streaming services such as Spotify, Deezer, Tidal, Qobuz, and more. With multiple devices, the wireless multiroom audio system can play the same music in sync across rooms or different music in different rooms.

2. What's in the Box

The standard package includes the following items:

• Up2Stream AMP v4 Board
• 4Pin Analog Connector
• Screwdriver
• Antenna (x2)
• User's Manual (PDF, available online)

*More accessories, such as Acrylic Casing, External SPDIF Board, External Button Board, and External Knob Board, are available separately.

3. Product Overview and Interface

Familiarize yourself with the various ports and connectors on the Up2Stream Amp V4 board:

4. Setup

4.1 Connection Diagram

Refer to the diagram below for a typical connection setup:

4.2 Initial Setup (Wi-Fi & Bluetooth)

Download the 4STREAM application from your device's app store (iOS App Store or Android Google Play Store). The application supports English, Spanish, French, German, Italian, Portuguese, Korean, Simplified Chinese, Traditional Chinese, and Japanese.

First Time Usage & BLE WiFi Setup:

1. Hold the POWER button, then plug in the power cable.
2. The LED light will start flashing. Release the button and wait until the LED flashes slowly.
3. Ensure your mobile device is connected to your home network (2.4G) and has GPS and Bluetooth enabled.
4. Open the 4Stream APP. For Android devices, the system may request permission to use GPS data and file storage; please accept to continue. This GPS permission is for BLE usage, and can be disabled in system settings after setup. File storage permission allows 4Stream to access MP3 files on your mobile.
5. The 4Stream APP will display available devices for setup. Select the desired device.
6. Choose the network you want the device to connect to.
7. Enter the password for your network. If this is not the desired network, you can change it.
8. Once connected, the device will automatically check for new updates.
9. You can then change the device's name, either by selecting a preset or entering your own.
10. After naming, the device will appear in the device list in the 4Stream app, and you can begin streaming music.

*If you change your router or its password, long press the POWER button for 5 seconds in WiFi mode to reset the connection.

*Holding the POWER button while plugging in the power cable forces the device into WiFi mode. If a router connection was previously set up, the device will automatically reconnect.

Alternative WiFi Setup (if the above method fails):

1. Hold the POWER button, then plug in the power cable.
2. The LED light will start flashing. Release the button and wait until the LED flashes slowly.
3. Go to your mobile's WiFi settings and search for 'SoundSystem_xxxx' WiFi and connect. (If not found, long press the POWER button for 5 seconds and refresh your mobile's WiFi list).
4. Open the 4Stream APP. You will see two options: Direct Mode & Add Device.
5. Direct Mode: Choose this if you do not have a router. After connecting, you can play music stored on your mobile.
6. Add Device: Select this, then choose the router SSID you want your Up2Stream device to connect to (enter password if required) and select continue.
7. You can change the device's name.
8. After naming, the device will appear in the device list in the 4Stream app, and you can begin streaming music.

4.3 Connection via LAN

Plug a wired Ethernet cable into the RJ45 Ethernet port. The device will appear in the app within approximately 10 seconds. Ensure your mobile device is on the same network.

4.4 Bluetooth Connection

To use Bluetooth, switch the device to Bluetooth mode via the app or remote controller. Then, find the Bluetooth device 'SoundSystem_XXXX' in your phone's Bluetooth settings and pair it.

4.5 USB Audio

Connect the Up2Stream AMP to your PC using a USB data cable. The PC will automatically detect it as a USB sound card. When activated as the system's main output, the PC will send audio output to the Up2Stream AMP in digital (44.1KHz/16bits). You can stream to other Up2Stream devices over multiroom connection, though there may be a ~3-second delay for multiroom slave devices.

4.6 ACPWorkbench (Sold Separately)

Connect the Up2Stream device to your PC with a USB data cable. Open the ACPWorkbench program (Windows only) to tune audio effects such as Music Noise Suppressor, Virtual Bass, Stereo Widener, Exciter, 10-band EQ, and configure output channel and PINs. After editing, save changes to the device to retain the tuned effects. More information is available on www.arylic.com or in the Up2Stream DSP Tool manual.

5. Operation

5.1 Power Button Functions

• Short press: Powers the device off and on.
• Long press (5 seconds) in WiFi mode: Resets WiFi settings and enters pairing mode.
• Long press in Bluetooth mode: Terminates the current Bluetooth connection.

*Holding the Power button first, then plugging in the power cable, forces the device to enter WiFi mode. If a router connection was previously set up, the device will automatically connect to that router.

5.2 Switching Stereo/Mono Mode

The Up2Stream AMP v4 can operate in either Stereo or Mono mode. The configuration is determined by the position of four jumpers on the board. Always ensure the power is disconnected before changing jumper settings.

• Stereo Mode: Jumpers are placed on the top and middle rows.
• Mono Mode: Jumpers are placed on the middle and bottom rows.

Refer to Figure 5 for a visual guide on jumper placement.

6. Specifications

7. Firmware Update

The 4Stream application will notify you when a new firmware version is available. It is recommended to update the firmware whenever prompted, as updates can correct bugs, improve security, and add new features or services.

8. User Tips

• Acrylic Case: The acrylic protection case is an optional accessory and is not included with the standard amplifier board. If you require a case, please purchase it separately.
• Android WiFi Connection: Some Android devices may require explicit permission to use the 'SoundSystem' WiFi network, even if it has no internet access. Always select 'yes' or 'stay connected' when prompted to ensure successful setup.
• Connection Stability: If you experience connection issues, especially after changing your router or its password, perform a WiFi reset by long-pressing the POWER button for 5 seconds while in WiFi mode.

9. Maintenance

To ensure the longevity and optimal performance of your Up2Stream Amp V4, follow these general maintenance guidelines:

• Keep Dry: Avoid exposing the device to moisture or liquids.
• Clean Gently: Use a soft, dry cloth to clean the surface of the board. Do not use harsh chemicals or abrasive materials.
• Avoid Extreme Temperatures: Operate and store the device within recommended temperature ranges to prevent damage.
• Handle with Care: The amplifier board contains sensitive electronic components. Avoid dropping or subjecting it to strong impacts.

10. Troubleshooting

If you encounter issues with your Up2Stream Amp V4, consider the following:

• No Power: Ensure the DC power input (12-24V) is correctly connected and the power supply is functioning.
• WiFi Connection Issues:
  • Verify your mobile device is on a 2.4G network.
  • Ensure GPS and Bluetooth are enabled on your mobile during initial setup.
  • If the device doesn't appear in the 4Stream app, try the alternative WiFi setup method (connecting directly to 'SoundSystem_xxxx' WiFi).
  • If you've changed your router or its password, perform a WiFi reset by long-pressing the POWER button for 5 seconds in WiFi mode.
  • For Android users, explicitly allow connection to the 'SoundSystem' WiFi network if prompted, even if it indicates no internet access.
• No Sound Output:
  • Check speaker connections (R+, R-, L+, L- for stereo, or XOUT for mono).
  • Verify the correct input source is selected in the 4Stream app.
  • Ensure volume levels are not muted on both the device and your streaming source.
  • Confirm Stereo/Mono jumpers are set correctly for your speaker configuration.
• Bluetooth Pairing Issues:
  • Ensure the device is in Bluetooth mode (switch via app or remote).
  • Check that 'SoundSystem_XXXX' appears in your phone's Bluetooth settings.
  • Try long-pressing the POWER button in Bluetooth mode to terminate the current connection and re-pair.
• USB Audio Not Recognized: Ensure you are using a USB data cable (not just a charging cable) and that the PC automatically detects the USB sound card.

11. Support and Documentation

For comprehensive details, wiring diagrams, and advanced configurations, please refer to the official user manual PDF:

View User Manual (PDF)

For further support, visit the manufacturer's website or contact their customer service.