Maggies sound great in a surround sound system. I use a Velodyne F1000 - 10" woofer with 80 watts - very low distortion, and most important for matching with the maggies, VERY FAST. Whatever you get, I have found that subwoofer placement is critical. I have had the best luck thus far when I consider time-alignment of the subwoofer with the bass panels of the Maggies. When they are time-aligned, the subwoofer disappears. Don't go for the showy effects - try to get the subwoofer to be solid, add a sense of fundamentals to the music, without intruding. Brian Richardson