AuraPlex MX - Troubleshooting: No Sound – Avantree Support

No sound from AuraPlex MX is usually caused by an incorrect audio input, missing audio signal, or a listening device that hasn't joined the Auracast broadcast.

Before you start: Make sure the transmitter is powered on and your audio source is playing.

Check the Transmitter Audio Input

Make sure the transmitter's selected input matches your connection: OPT for optical, AUX for a 3.5 mm audio cable, or Bluetooth for wireless audio.

Check the selected input's LED while audio is playing.

Solid White

Audio signal detected. Continue to Step 2.

Flashing Red

No valid audio detected. Check the audio source settings below.

Using Optical (TV)

Set your TV's digital audio output to PCM / Stereo.

Find PCM Settings for Your TV Brand

Using AUX (TV / Mixer / Sound System)

Make sure the audio cable is connected to the source's Audio Output, not an audio input. If using a mixer, confirm its output is active and not muted.

Using Bluetooth (Phone)

Make sure your phone is connected to AuraPlex MX, then play audio and increase its media volume.

Check Your Listening Device

If the transmitter shows solid white but you still hear nothing, follow the instructions for your listening device below.

Using an AuraClip Receiver

Check the Auracast indicator on your AuraClip receiver.

Solid Orange

Connected. Increase the receiver volume and check that your earphones are plugged in securely.

Flashing Orange

Searching for Auracast. Keep AuraClip near the transmitter. If it continues flashing, restart AuraClip and reconnect.

How to Connect AuraClip to the Transmitter

Using Auracast Hearing Aids

Open your hearing aid app or supported Auracast Assistant.
Find and join the AuraPlex MX Auracast broadcast.
Increase your hearing aid listening volume.

How to Join an Auracast Broadcast

Check Hearing Aid Compatibility

Important: Auracast hearing aids must join the broadcast through their supported Auracast connection method. Regular Bluetooth pairing is not the same.

Still No Sound? Try These Final Checks

Restart: Turn the transmitter and receiver off, then power them back on.
Try a different audio cable: Replace the Optical or AUX cable with another compatible cable to rule out a damaged connection.
Test another input: Try AUX or Bluetooth, if available.
Check the result: If another input works, the issue is likely with the original audio source, cable, or source settings.

Still Need Help?

Tell us your audio source, selected OPT, AUX, or Bluetooth input, whether the transmitter LED is solid white or flashing red, and whether the AuraClip LED is solid orange or flashing orange (if using AuraClip).

ASK A QUESTION