A PM from Mojo reminded me that I never posted the results of resetting the microprocessor on my Denon’s Auto-EQ.
Resetting the microprocessor didn’t seem to have any effect on the Auto-EQ. It still made an EQ curve that set the center and surround speakers to around -6dB to -9dB and the mains to -3dB at the 250 to 500 Hz ranges.
I know that the microprocessor did reset as all the assignments and settings were gone and I had to reset them from scratch.
I’m pretty sure It must be something to do with my room’s acoustics or somehow I damaged the microphone.