I think the L/R level outputs of my CGM have a noticeable mismatch.

If you experience an abnormal panning on the CGM, check your case’s power supply and your system’s overall power consumption. We experienced that the CGM system sometimes has trouble working in a system close to its maximum Ampère output. An unbalanced power supply may cause the audio to be louder on one channel than on the other.

Try staying below 80% of the total amperage or switch to a more powerful PSU to solve this issue.