What Axiom subwoofer(s) do you own?
EP350. Want to upgrade to an EP500.

Where do you have the Level, Frequency, Phase, and Subsonic Filter (if applicable) controls set?
Level 3/4 of the way up, freq at 80hz, phase 0, No Subsonic.

How are you connecting your signal source to the subwoofer (RCA/XLR/High Level)?
RCA.

What receiver/processor/pre-amp/integrated amplifier are you using?
Denon 3312CI.

What are you using for your main speakers?
2 pairs of M22, vertically aligned.

Where do you have the crossover frequency and trim levels set in your processor/receiver for your main speakers and your Axiom subwoofer?
I calibrate with Audyssey. LFE is at 80Hz. All speakers set to small.

Are you using the trigger on your subwoofer?
No. Don't know what it's for.