I’m considering upgrading my speakers internal wiring

Hey, it can't hurt to contact the OEM and just ask what is worth changing out or replacing internally. Especially if the speakers have some age on them.  Who knows, there maybe some parts that he will say "swap x out for y" because y is a better part that wasn't available when the speakers were made.

But if you do make changes, you will invalidate the warranty (if it is still valid) and if you ever send it back to be fixed, they may refuse to work on them.  And document everything you do, take pictures and keep the old parts.

@bobbyloans  -  After reading through the posts, it got me thinking.  So, something to consider, or not....  If you are looking to dive in and tinker, learn what things can improve SQ, or just change it, rather than experiment on your $$ main speakers, maybe purchase some inexpensive speakers (inexpensive being relative) and play around with them instead.  Especially if you get something that was more mass market with more "compromises" that you can "correct".  Hey, and maybe acquire 2 pair so you have a baseline to reference.  LOL  

That might be fun.

- Jeff