I disagree, the 400 might reach a little lower, not audibly, but way less oomph, at least in the experience I have had with them. That little driver just can't move the air enough to fill a room, well for HT,IMO.

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