my center sits above my tv. i did angle it down. i have dialog enhancement up 1. all i know is that it sounds pretty much perfect to me. as for setting it to small, tried it on small and large, sounds better to me at large, and im the one listing to it. it reminds me me of when i was sitting my truck stereo up, lots of settings, slope, cutoff, and many more. finally one man said = set it to where it sounds good to you. you can over think anything. think of it like this, you pay some one to come out to your home with all the high dollar equipment. he adjust everything to perfect, according to the instruments, but its not to your taste, so then you have to dial it into your listing pleasure. all i know is that it sounds great. im sure it could be better, but it will do for now.