A subwoofer is a must-have component for any home theater or audio system. The performance of your subwoofer can greatly affect the overall performance of your system. Without the subwoofer, the deep bass on your music CDs and special effects on DVDs may not be heard and/or felt. Think of a subwoofer as a vital component that adds excitement to your theater or music experience. The SF10 freestanding subwoofer has its own source of amplification (as opposed to passive, non-amplified subwoofers which require an additional power amplifier). Subwoofers can add considerable low frequency, deep bass performance to any home theater or audio system. Adding a subwoofer to your home theater system will dramatically enhance your music and videos. The subwoofers from Destination Audio provide the low end sound that will add dimension to your music and make your videos come to life.