Add rich and deep bass to your music and movies while accentuating low frequency sounds. Give your home theater the bass set it deserves with the DB4S - a powerful, classic-style single-driver subwoofer. The compact, dramatic bass is offered through the rigidity and lightness of the unique shape, variable thickness Aerofoil κ cone. Thanks to 1000w digital gain, the DB4S provides all the precision, control and power you could ask for.