Music Distorted via AUX Input – Avantree Support

Your mixer output may be too strong for the AUX input

If music sounds distorted, unstable, or changes pitch while speech sounds normal, the transmitter's AUX input may be receiving too strong of an audio signal.

Why does this happen?

The AUX input on the Harmony 2 / Quartet 2 (Avantree Flex) transmitter is designed for consumer-level line output. Professional mixers, soundboards, and DJ equipment can output a much stronger signal.

TRANSMITTER AUX INPUT ~1V RMS Designed for consumer-level line output

PROFESSIONAL AUDIO EQUIPMENT Up to 4–6V May overload the transmitter's analog input

Music has a wider frequency and dynamic range than speech, so an overloaded input may be much more noticeable when music is playing.

Distortion, clipping, or compression

Pitch wobble or unstable audio

Music sounds worse than speech

How to fix it

Lower the mixer output

Reduce the master output level or AUX send to about 25–30%, then test the music again.

Try a lower-level output

If your mixer has multiple outputs, connect the transmitter to:

Record Out, or
Monitor Out

These outputs are usually lower level than the mixer's main output.

Still hearing distortion?

Use a passive inline attenuator (-10 dB or -20 dB) between the mixer and the transmitter's AUX input.
Check the mixer's EQ and gain boost settings. Strong bass or treble boosts on music channels may contribute to the problem.

Still need help?

If you're unsure which mixer output or setting to use, send us a photo of your setup and we'll help you check it.

ASK A QUESTION