If I can use only 1 crossover for all speakers/all inputs, is 60 too low for the VP150 and QS8's? When I listen to 2 channel, I go to 60, but that seems low for the mid and rears for 5.1 or PLII.

M60 VP150 2x QS8 EP500 HK 7300 DENON DVD-3910 Sony 60" SXRD