Gain being too high...which I believe it was...or not, it should be covered under the warranty. As mentioned before, the subs appear to have been 'level matched' as opposed to 'gain matched' which doesn't account for all variables with the two subs. I would hope my 15H's could take more a beating than that and keep on ticking.
Truth be told though, listening to the depth charges in U-571 at that gain and kicked up hot in the avr would be something.
Projector: Benq W1070 1080p 2D/3D
AVR: Denon X2200W
Mains: Klipsch RF-62ii x 2
Center: Klipsch RC-62ii
Surrounds: Klipsch RS-42ii x 2
Subs: Dual Hsu VTF-15H's