I recently installed a Pioneer VSX-1014 in my system (posted a mini-review in the ongoing 1014 thread in the receiver forum) and it did something strange with the sub configuration. It has an automatic configuration system called MCACC, where you plug in a microphone and set it up at the listening position, and the receiver does the rest. Well, it decided my main speakers are 9 ft. away while it set the sub to 20 ft. away, eventhough the sub is right next to the right main speaker. While this isn't physically accurate, it made my system sound worlds better than before with regard to sub integration. Previously when I manually set my sub setting to the actual physical distance, the sub sounded like it was lagging behind the main speakers, so I never used it for music. Now it sounds perfect and integration is seamless, even with music. My questions (finally): why does the receiver have to set my sub distance as 20 ft. instead of the 10 ft. that it really is? Could there be something wrong with my Paradigm PW-2200 sub? It's been like this since I got it 5 years ago. It's like I got a brand new sub so I have no complaints, but I'm curious as to what could be causing this behavior.