Big Beefy Bass The Low Frequency Effects of a movie's soundtrack bring excitement, realism and just plain fun to action, adventure and sci-fi movies. Accurate reproduction of the bottom octaves of all music, especially pipe organ, symphonic and rock add that last touch to bring you true you-are-there realism to your listening. Worry not, Definitive has bass down pat. The ProSub 800 features a 300 Watt amplifier driving a high excursion 8 inch front-mounted direct-radiating woofer that is pressure-coupled to an 8 inch Low Bass radiator on the bottom of the enclosure. The net radiating area of the ProSub 800 is 27% greater than a single 10 inch woofer but with better speed, pitch definition and control.