What Axiom subwoofer(s) do you own?
2 - EP800
Where do you have the Level, Frequency, Phase, and Subsonic Filter (if applicable) controls set?
EP500 - 8 O'clock, 150Hz, 180 phase and no subsonic filter
Both EP800 are setup the same - 12 O'clock, 150Hz, 0 phase and no subsonic filter
How are you connecting your signal source to the subwoofer (RCA/XLR/High Level)?
What receiver/processor/pre-amp/integrated amplifier are you using?
What are you using for your main speakers?
Where do you have the crossover frequency and trim levels set in your processor/receiver for your main speakers and your Axiom subwoofer?
M80's are set to 40Hz and Large
LFE is 80Hz
Are you using the trigger on your subwoofer?
Yes, I use triggers on all 3 subs