Hank, Still a steal at $3500/pr and the subs integrate speed wise with mid woofers, add your own true sub below 40hz if needed or wanted and have it all. This is a planar that reaches below 80hz before adding 2- 8" mid-woofers and the blend is more invisible than most other designs. Greg uses 1st order simple x-overs, a cap on the ribbon and a big choke on the 2 8" mid-woofers, and nothing on the planar, for a direct signal path without any corrective filters. Consider it a "speaker" that reaches the upper 20s, roll your own sub in and use the plate amp's controls to integrate Greg's subs, with deeper reaching more impactive subs for power and infrasonics. Greg tells me that removing the caps from the planar, and redesigning the damping on the kapton planar to take a full range signal without breaking up, really unleashes the dynamics, detail, and jump factor of the speaker! This came only recently, but at CAF the bold dynamics and resolution were two of the GTA2s strongest features. He currently is without power/heat/internet/water, so his cell is the only way to reach him, call and discuss your questions, he has nothing else to do. LOL
