Power One HT 200's exceptional bass response is patented diaduct bass port technology which creates a massive air flow and deep, powerful bass from a heavy duty dual voice coil woofer. Engineering has also used a high powered, proprietary digital switching amplifier to run cooler than traditional class A/B amps. This technology provides nuanced, crystal clear sound for both dialogue and music. This combination results in fuller and more powerful bass all from just one slim cabinet.