I think that you will be fine with them on "Large" as far as damaging them. No worries there. It will impact the sound, but like you said, there is something bigger going on here.

I've had my set up on "Large" for all of the speakers for a little while (even with a sub), but prefer small, even though they can handle it.

Check out your DVD player, or heck, plug in another one. Even a cheap one, and see if it is any better.

Divide and conquer!

Farewell - June 4, 2020