So I've developed a problem exactly 2 years and 14 days after purchase (14 days past the warranty

). Last night there was a power outage in my neighborhood. All of my components are hooked up to a very expensive surge protector. When power was restored, all of the lights on the surge protector were green... no problems there... but now there is no sound coming out of the right channel on any of the settings 7.1, 5.1, 2 channel, etc. Having managed a stereo shop in the 90s I did all of the normal things... going through the set up, changing settings back and forth, switching out speakers... both speakers work on the left main side, no speakers work on the right main side.
I have downloaded the instructions to try a firmware update, other than that, I'm looking for any inexpensive options for repair, work arounds, etc. I just sent two pair of Advent Heritage speakers to be refoamed (all four woofers) so money is not great at the moment.