I have a definitive pro center 1000, SM55 bookshelf’s and a pro sub 1000 with an AVR-x1400h receiver. I have been messing with settings but I just can’t get a sound that is perfect for me. The biggest problem I have is the center channel seems to get distortion at high volumes (I think it’s excurtion, where the speaker is moving back and forth. The center seems to do this to much I think). I would love to know some crossover settings, it’s so hard to find them online. Thanks for any help.