BG Radia BGX-4850
The BG Radia BGX-4850 ($6,995) is the first THX Ultra2 in-wall subwoofer, co-developed with THX and designed by BG’s chief scientist and vice president of R&D, Laurie Fincham. It is also the first in-wall subwoofer to use THX Balanced Bass-line, a proprietary THX technology that is said to deliver vibration-free bass from a compact speaker. It is comprised of four modules, each of which contains 12 micro-precision woofers with their own enclosures arranged in balanced pairs. Its external comtroller/amp pumps more than 2,000 watts of power.