I just noticed one of my RTA 11Ts seems to have lost power. Both drivers sound like they are drowning and lack any clarity and the tweeter doesn't seem to have any output at all. It's brother is not having any issues, so I switched the channels to make sure the amp isn't the problem, and it is definitely the speaker.
Any ideas as to what the problem is?
I am using a Yamaha HTR-5860 as a pre-amp and an Adcom GFA-5500 to power them.
Thanks for any help,