Whether you go “Gaga” over the half-time show or the $5-million commercials or the play-by-play, be ready for Superbowl LI with a ProCinema 400 home theater speaker system with four satellite speakers, one center channel speaker, and one subwoofer. Get user-friendly easy-to-install elite audio at an unbeatable price — $449. (Price valid until 02/06/17)