Setting up a subwoofer is difficult at best. Achieving reasonably flat low frequency response is nearly impossible. DSPeaker's Anti-Mode 8033 eliminates this problem. Using sophisticated digital processing, the Anti-Mode 8033 listens to your subwoofer and creates the perfect equalization curve for your room. This allows your subwoofer to produce fast, clean bass that is perfectly integrated with your main speakers. Get this, the 8033S even works in the car!