ATH M50 - A small problem in left-right balance. Please help?

[CasualCans]

Try different players and different recordings. Do you still notice the imbalance ? If you have a radio you can try listening to music on a MW station (not FM) since these are mono and you'll have the same sound going to the left and right sides. 
 
You can try playing a test tone on your laptop and see how it sounds (Google for it ). You can also download an oscilloscope app for android phones which uses the mic on your phone to measure the left and right side while playing a test tone.
 
Cheers,
Santhosh

 

[Glen Mcgrawth]

Thank you so so so so much. My headphone imbalance was driving me nuts till I read your reply. A very slight imbalance in my sound setting for some magical reason. Thanks again

 

[CasualCans]

  Thank you so so so so much. My headphone imbalance was driving me nuts till I read your reply. A very slight imbalance in my sound setting for some magical reason. Thanks again

Glad I could be of help Glen
 
Cheers,
Santhosh

 

[Woody1988]

Same problem with my ATH MSR-7: Left speaker louder.
 
I guess its because the cable is attached on the left can, so the cable would be shorter an the left side than the extended one lead through the head band to the right can.
 
I didn't open it to see if the the cable in the left can is cut or winded up to stay the same length as the right one, so I don't know if that's the problem.

 

[stuck limo]

I'm having a channel imbalance on my m40x but it's in the left channel. It seems to affect the drums and the high-mids to highs, depending. The sound is about 50% lower and has less impact than the right hand side on certain instruments. The right side on these instruments sound richer, sweeter and more detailed. I wasn't sure if it was my imagination or ears, so I got a brand new pair of m40x and am trying them out. It seems like the issue does not exist on these new ones. I read this is an occasional issue with AT gear elsewhere online.