Thanks,but the THX setting is supposed to automatically set the x-over at 80hz. Why are my M22's creating bass when the tone cycles to the sub? I think the sub tone on that Avia disc is around 80hz! The Axioms should play this tone, but not at the same time as the sub? Thanks for the help! Huck

M22ti's x2 VP150 x1 QS8 x2 SVS 20-39 PC+ Onkyo TX DS-777 Ideal Lume Standard