The OSD Black BK-TreVoce 10 DSP Subwoofer is design engineering at its best. This dynamic powered subwoofer is rated up to 500 Watts and includes an internal Digital Signal Processor (DSP) that modifies the audio signal digitally for tighter control on output accuracy. Its unique audio infrastructure also includes a 3-way woofer design with a 10” active graphite paper cone woofer and two 10” passive glass fiber cone radiators. The active subwoofer is self-contained and uses the sub’s amplifier to reproduce sound while the two passive radiators work in conjunction to produce tight and powerful bass. The result is enormously full and “loud as you want it to be” bass that would only be possible with a larger, more expensive ported enclosure. Adding the BK-TreVoce 10 to your home theater or media room will free up your main speakers from having to produce low-frequency sound for which they were not designed to do, so you’ll experience movies and music soundtracks with breath-taking authority.