Ok so all speakers were set to small, cross is 80hz, phase at 0, sub gain set to half volume. Sub is at 15db on the avr. Went through the calibration process and never heard the sub after all 6 rounds in the setup. Still no sound from the sub. I have the sub hooked through the white side of the rca. I tried the red also, even tried another rca cord. I will note that even though i dont have the red side plugged, i can hear a little noise coming from the sub. I'm not sure what else to do.
I welcome anymore suggestions. I wonder if denon offers tech support?