For over 25 years, AudioSource has provided high quality amplifiers, preamplifiers, equalizers, indoor/outdoor speakers, in-wall speakers, powered subwoofers and surround sound processors for value conscious audio enthusiasts. Powered subwoofers have become a necessary part of any complete audio/visual system, particularly for home theater. Your normal speakers can only pick up a certain range of sounds, leaving the very lowest frequencies unheard. Powered subwoofers fill in those blanks. For years, AudioSource has been offering fine powered subwoofers at excellent prices. The SW 300 Compact Powered Subwoofer is a perfect match for compact speakers. It fills in the lowest tones which regular speakers cannot reproduce. Check out the System 300, which joins the SW 300 with five compact speakers, allowing you to create an unobtrusive home theater environment at a great price.