Sorry for the Noob ???`s but I could not find anything relavent w/ a search. I have a Sony BVD SI1000 blu-ray HT. I hate the subwoofer. It cracks and pops at even nominal levels and has no real deep bass. It is not powered and the reciever has no RCA jacks for a powered one. What options do I have for some serious bass response, primarily for movies. I know that I could buy a receiver and sub, but I was hoping just to buy a new sub that would perform well and be compatible w/ the Sony HT. I called Sony sales and they do not make anything that is compatible out of the box. Thanks in advance for your patience and help with a rookie!!!