Funny mines doing the same , left is clearly quieter and it distorts , tried several pairs of headphones , different ratings with new projects , different adapters.
Left has lots distortion like the connectors not right.
Units only a couple of months old, never really used the headphones till now when I’ve got my studio unplugged.
Anybody else got this ?
First is the right , then I plug in the left via a trs to ts split cable into an audio interface, the first volume is from the right , then the left channel, much quieter . I then boost it without clipping from the audio interface to show the distorted left channel bringing it up to volume as the original right.