My fear about D-Box is that they company will go bust, and without them to be writing the motion codes, you'll by stuck with a ButtKicker that cost 5x as much. The ButtKicker will always work as long as Hollywood keeps pumping out LFE tracks.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris