I purchased a samsung htbd1250 blu ray surround sound system and the product was great. but now, it seems like every time a put a movie in, it seems to shut down. when the sound even gets a little bit high or the subwoofer rumbles loud the systems volume will turn off for a second and then the entire system shuts down. i have already checked all speaker wires and that is not the problem. i don't know if it has to do with the subwoofer because it seems like when that gets loud it shuts off or if that has nothing to do with it.