If placeing two subwoofer in two different locations is not optimal because of cancelations, then what about my two towers that go down to 32 hz -3dB? I know I've asked this before but now its bugging me. Sometimes I hear the bass notes well, and other times not. I guess i should experiment with placement? If two subs in different locations has drawbacks, then why get towers that go so low? Aren't I dealing with the same problems?