In the meantime while you wait, unplug the power cord on the EP350 from the power center/surge protector and leave it unplugged for a few hours. Plug it back in after that time and turn the switch back to auto/on and then try some music or a movie.

If it is still the same, leave the sub unplugged until you have this issue resolved with Axiom.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne