Hi @krisdvv ,
Post some close up images of the board(s) back here and hopefully someone will spot what you can't.
Here's how to do this on ifixit [guide|21499]
The 3 images in Reply post #30 of this [https://www.eevblog.com/forum/repair/help-required-repairing-a-logitech-z906-speaker/25/|link] shows what the damage ''may'' look like in your speakers if it suffered from the same problem but maybe not. Click on the images to get a close up view