I suppose you can experiment with them in nooks but they may go BOOM!

Yup, you can do that. I don't know if you have two separate .1 channels or 1 channel that is paralleled. You ought to check with Axiom for how many sealed subs you can run off of a single sub out. It depends on their input impedance and also on how much load (current) your .1 output is rated for. Check the specs for the .1 output.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated