I will have to find out what the box tuning is...the bad part is their is no crossover so Id have to come up with something.I really want to build the 4 Pi Pros with all JBL motors just to get it off my back..but 2 of those kit are pretty spendy @ $1640 ..id be in them for a good $1800-$1900 after building some nice cabinets.
Heck I could buy a pair of JBL SR4725X speaker for about $100 more and just throw some Pi crossovers in them. :-)