It's not MY THX system. It's Phex's. Phex > you. Really, he can only have it turned up to about 1/32 of it's capacity, and even THEN it's overwhelming. And he's not using 2 of the speakers he could be using.
*uses the killer sound system from Hitchhikers guide to the Galaxy, sequal book 2 Resturant at the End of the Universe, where they almost have to ban performances with this sound system due to tectonic plate shifting, and blasts out some Du Hast*