Emailing Axiom is probably a very good idea.

I have to admit, the lack of a hard power on was a contributing factor to my non-Axiom sub. (the other major factor is the relatively small amount of low frequency power required to match the sub output to that of the other speakers, unlike the other junk-jigglers here who like to run theirs 24dB hot... oops, my backspace key quit working. )

Seriously, though... Axiom should be able to help you out with some ideas (besides mine of keeping a AA battery with momentary switch in line with the sub out feed so you can reach over and give CPR to a sleeping sub) **CLEAR!!**.

Bren R.