Originally Posted by DonH50
Try re-running the calibration. The AVR does not supply significant power to the sub so it is most likely something to do with Audyssey. It is also possible bass was boosted by the Yamaha, of course.
The strange thing is when I disabled Audyssey MultEQ, the deep bass still cannot be heard.
When I used the Yamaha V1800, I didn't boost the bass at all. The deep bass sounded pretty good, it can be heard and felt when it needed to be.
It didn't overpower all the other frequencies.