The hd P12 is a compact, transportable and powerful active subwoofer. The new designed long-excursion chassis with 3“ voice coil, fiberglass double spider, single-role rubber surround and cooling of the voice coil through the pole piece and spider allows an extremely high continuous power rating. Improved cooling increases the durability and reliability of the subwoofer. Excellent dynamics and tight impulse response combined with outstanding sound pressure level is the result. The entire electronic components are integrated into the enclosure. All relevant inputs and outputs are neatly placed on an aluminium control panel the back side.