The positioning of the speakers is very important when installed in a helmet. If you are noticing that the sound is quieter on one side compared to the other, please check the positioning of your speakers to make sure that the center of both speakers are directly over your ear canals, and they are as close to your ears as possible while still being comfortable. This will ensure you get the best possible sound out of the speakers.
For any Motion device and the AMP Go 2 (systems with Bluetooth 5.0), you should also check the Equalizer feature in the ClearLink app to make sure that the sound is coming through both speakers equally. The Equalizer feature does have a panning option so please check to make sure that it is set directly in the middle and not panned toward one side.