My left speaker's sound is distorted

I've been replacing lots of speakers in the MBPro 2014 model as those speakers are failing like crazy. I've never seen any Apple speaker fail as much as this one. Unfortunately I think only used speakers are available from online vendors. If you can find an Apple Authorized Service Provider, you may be able to have them do a Stocking Order for a set of speakers for the 2015 model as they will fit the 2014 model. It is best to have the AASP perform the repair if they order the speakers since Logic Board needs to be removed to access the left speaker, plus the right speaker should probably be replaced as well since it is probably weak or will become distorted soon (also requires removing the I/O Board). However, many AASPs may not know about or may not do the repair this way.

Installing used speakers is not a great option since the used speakers will be just as old and just as likely to be distorted or have weak sound. I think these speakers are failing from old age since they all seem to be failing at about the same time. The price of used speakers online are actually more than the cost of new speakers from Apple.

Hey manzatami100,

It appears that the left speaker on your MacBook Pro isn't working as expected, and we're glad to provide assistance.

How to reset the SMC of your Mac - Apple Support -- Reset the System Management Controller and test the issue once your Mac is back to the Desktop.

Use Apple Diagnostics to test your Mac - Apple Support -- If resetting the SMC didn't fix the issue, run Apple Diagnostics to check for a hardware issue. Once it's completed, you can use this article to find what the reported code means: Apple Diagnostics reference codes - Apple Support

Feel free to get back to us with any questions or problems you may have.

All the best.