I've submitted a ticket with Axiom (not sure how long it takes them to action) but was wondering what user experience has been with support.

Last night, I noticed my EP175 didn't appear to be outputting any sound. The green led on the back panel is on, the volume knob is set at 6, not output. I turned it on and off hoping a reset might do the trick, no go.

Next I tested to see if my AVR or cables were bad. I substituted another sub I have lying around and it worked fine (i.e. not an AVR or cable issue).

Any other thoughts? The sub is only 4 months old (though it was a refurb from the Axiom store).