velodyne dd15 crossover

[tony gange]

I have a velodyne dd15 and simaudio components
When I use the auto equalize on the velodyne I have unlimited crossover options Should I crossover at 80 HZ or at a lower frequency.
How do I determine what is optimum-at least on paper?
I have a dedicated HT approx 16'x20' with heavy drapes in the back to close off the entire back potion of the room.

 

[Munster]

Not that someone here couldn't help but over at avsforum.com in the subwoofer section they have an entire thread under Velodyne EQ that should help alot.