This happened about 30 minutes ago. My son was playing a video game on my system....the front right speaker (Klipsch RF-52) had a crackle noise to it during any gunfire or explosion. Didn't crackle in other speaker. I had him turn it off, played a video, and it sounded fine. Now, while playing a movie, if I switch the surround modes (Direct, DTS NEO:6, 7 channel, etc) it makes a small pop at each switch. Only pops during the switch of modes, not after.
My receiver is a Denon AVR 2310 CI.............do I have a piece of equipment fixing to fail on me?
Update: I just hit the surround mode to test again, loud pop, receiver shuts down and power button flashes red