Center Channel Audo Issues X-2200
I've had my Denon X-2200 since 2016, had no issues with it at our previous home. In the process of moving, it sat unused in a bedroom (temperature controlled) for about 1 year. After moving and setting up my HT system I've encountered a frustrating issue that I can't seem to resolve short of purchasing a new AVR.
My setup: Energy RC-30's left/right; Energy RC Mini center, Klipsch subwoofer.
After setting up the speakers/wiring everything I ran audissey in the new living room, no issues there, but not long I started having issues with center channel/audio dialogue. It will randomly drop from the center channel; I can still barely hear the muffled voices being directed to either the L/R woofers or possibly the subwoofer, it's hard to tell exactly but you can't make out the dialogue. And then it randomly comes back to center channel full volume.
I have replaced the speaker wiring/ends from the receiver to the center channel; I have plugged my RC-30's into the center channel of the AVR (the issue follows whatever speaker is plugged into the center channel.) It occurs across all inputs (I have a roku device on HDMI 4, and use ARC with my samsung KS8000; the problem occurs on both those inputs, it also occurs on multiple codecs (Dolby, DTS, Virtual, Stereo ect)
It almost seems like a audio decoding issue, but I'm out of ideas. I've factory reset the Denon, re-ran Audissey; the only thing different about the AVR from when it worked properly was that it sat unused, it is now in a different location, and after setting it up in the new home, there was a new firmware for it so I downloaded it.
Any help is greatly appreciated; I don't want to have to purchase a new AVR with this one being 4 years old but it's out of warranty, so if that's the solution so be it.