hi Malboro Time to chip in I guess.yep,I have done what you have,but one better.Gone fourway.{four}TL subs,tuned to 14Hz xover to a 12" sealed box at 63Hz.From there to the{16} sealed mids loaded in PVC pipe stuffed with wool at 330Hz then to the planars at 2800Hz.All this Controlled by 3DCX2496,3DEQX2496 and two FBD2496.Each driver has its own home brew amp.These stacks flank a 130" wide screen in my HT in my basement.When you hear this then you know the meaning of dynamics.Oh and did I mention that proper line array's do away with the center channel?When I find out how to post pics,I will send them. Cheers Sunny