Setting your mains to 'large' will cause subwoofers to bottom out? Is that right? What causes that in a LFE+Mains configuration? I didn't think that setting affected what was sent to the subwoofer, just that it also sent the low frequencies to the mains as well. That was my understanding of the way it worked.

If for some reason LFE+Mains sends extra frequencies to the subwoofer, causing it to bottom out, then perhaps there's our answer. But I don't understand how it would do that?

My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD