I believe they allow the top of the speaker to be about 3 inches from the ceiling; I always felt it needed to be twice that. I will dig through my boxes and try to find mine to let you know for sure, hopefully someone else that is currently using one will be by sooner.

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