>>Do you have children? And are you missing any small pets?

Bren is not kidding BTW. It's amazing what people will put into subwoofer ports, and what will crawl in unaided if left alone. Search for the "what's in my subwoofer" thread

Definitely call Axiom though; they can walk you through the troubleshooting sequence. Some of it may involve a screwdriver so better for the Axiom folks to tell you rather than us.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8