Just set the M80s to large and play a 40hz tone then check to see what is playing, I know my 3808 plays out through both mains and sub with LFE + mains used and Mains set to large, thus the highly debated idea of double bass.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70