Before You Start: No sound may occur if the headphones are disconnected or the transmitter is not receiving TV audio. Turn on the Quartet transmitter and headphones, then play a TV program or video with sound.
Step 1 – Check the Headphone Connection
Keep the headphones near the transmitter and check their connection lights.
Headphones Not Connecting? Quartet headphones are pre-paired. If disconnected, follow the pairing guide below.
Quartet – Pair / Add Headphones →Step 2 – Check the Audio Signal & TV Settings
While playing TV audio, check the transmitter's AUX / OPT indicator.
Choose your TV connection type and follow the matching instructions.
Step 3 – Check Connections, Volume & Restart
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Check the cable connection:
Make sure the audio cable is securely connected to the TV and transmitter.
Optical Cable
Connect to the transmitter's OPT Input from TV.
AUX Cable
Connect to the transmitter's AUX Input from TV.
- Check that the transmitter's OPT or AUX light matches your cable connection.
- Increase the volume on the headphones and transmitter using their + buttons.
- Press the headphone Play/Pause button once to unmute, if muted.
- Try another TV channel or video.
- If available, try a new audio cable of the same type.
- Still no sound? Restart the transmitter, headphones, and TV, then test again.
No Sound on Certain Apps or Cable Boxes? Play the affected program and set the TV or streaming device's digital audio format to PCM / Stereo.
Cable Box Audio Settings →Still No Sound?
Tell us your TV model, cable type, selected AUX/OPT input, and transmitter/headphone LED status.
Contact Avantree Support →
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