I've been reading Clint DeBoer's review of the Epic 80 system on audioholics.com and he talked about "crawling around on all fours" to locate the sweet spot for the sub. What does this entail? And is it really that hard to place a sub-woofer? I know room geometry matters, but I have a 12x22x8 room and I'm looking at buying the 350.Thans Mark

M22v3;VP150;QS8;Hsu VTF3-MK4 sub