THX is getting into the sub business with their new B6X in-wall subwoofer solution developed with BG. The in-wall uses four modules that fit within a standard 2x4 wall space. This is the first in-wall subwoofer solution to achieve the Ultra2 certification from THX.

The subwoofer features an outboard amplifier/controller that delivers 2400 watts of power to the four modules. The in-walls will be shipping in November from BG and retails for $6995.