the audyssey set my M60 at 40hz and VP150 at 120Hz, I've change the VP150 to 100Hz and keep the M60's 40Hz.

I set my Onkyo to output the LFE to both L/R and the sub. I like the weight and dynamic with this setting but make sure your amp got enough juice to push the front at lower crossover at loud volume.

am using XPA3 to power my M60,so there's no power drain from my Onky.