I have a H/K AVR 520, M3's for mains and a VP100. I had the M3's set to "large" 60Hz for a while, since the M3's are rated to 50Hz. I just recently set them to "small" 80Hz and to be honest, I can't really hear a difference. BTW, the rest of the low-end is handled by an A.R. 12" powered sub.
The VP100 I set to "small" as well as my surrounds.

Big L