Was hoping to get some help with a receiver I purchased about 7 or 8 years ago, the Denon AVR-1612 with a 5.1 setup. The speakers are the Polk RM6751 5.1 set.
I used the supplied microphone to do the calibration, but it seems the rears are way too loud compared to the fronts and center when using the proper setting for a given format, example DTS or any 5.1 or 7.1 format. I can barely understand the spoken voice from the center speaker. For many years, we ended up using "multichannel stereo" speaker setting in the Denon. Volume can be lower, but then only 2 people can hear, those right next to the rear speakers. Anyone setting in the center or on the other couch going down the left side can barely hear anything. Family of 4 fight for these 2 seats.
I tried to play with the individual speaker settings to make the center and front surrounds louder, but it barely made a difference. Not sure if had to turn something off or disable the calibration settings to make it work, but I am a noob when it comes to this stuff. Tried the microphone setup several times over the years.
Here is a screenshot from the manual for the suggested 5.1 setup, edited to show my setup. The red X shows where the surrounds really are, and the couch on the left.
Any help or guidance would be appreciated.