EDGE EDBX12ADSP-E3 - 1200 Watts 12" Amplified Car Subwoofer Bass Box with Built in DSP & Wiring KitEDGE EDBX12ADSP E3 1200 Watts 12" Active Bass Box Enclosure with DSP & Wiring Kit The all new EDGE DBX Series bass enclosure delivers the highest level of technology on the market for these prices. Our DSP front end gives the user the ability to control features such as: parametric EQ, subsonic filter, low pass filter and phase, all available via the smartphone app (on Android and iOS). Customers can expect the usual excellent EDGE Audio build quality