Lets say this does not work out as intended, and I do wind up running the mains full range (i.e. AVR set to LARGE). Do I need to use a highpass filter so sub-40Hz content will not damage the woofers, or do the Omega 15 and 2226H cones simply not excite below where damage would occur? I ask because I do have to highpass my subs to prevent over excursion.