Reading this thread sure makes a dual subwoofer setup appealilng...! My problem is that I simply don't have enough space for two subwoofers in my room. However in the pursuit of better bass performance, I am upgrading my 10-inch SVS PB10-NSD sub to a 12-inch Axiom Audio EP500 v2 sub (I ordered it last week) - http://www.axiomaudio.com/ep500.html. The new subwoofer is said to extend all the way down to 18 Hz thanks to its sophisticated on-board DSP chip.
tkroeker - as far as I know most (if not all) AV receivers have only one subwoofer output. To connect two subwoofers, they must be daisy chained (i.e. at least one subwoofer must have an output). Am I saying this correctly Brad?