I now have a(cheap) 100watt 12inch Jensen Sub working with my Kenwood system. The Kenwood system is a five speaker system rated at 100watts per channel. It is overpowering my sub. My cheap Jensen sub also makes some port noises due to my repeated viewings of DVD’s at or above theatrical levels. It simply can not hit those low 35hz and under notes nicely. I am looking for a subwoofer that would work nicely with this system and can hold up to low movie bass at high volumes. I am looking for the best sub under 300 dollars. Any help would be appreciated! Thanks!