Does anyone have Pro60 for the front or SL65 rear? I've always liked the Boston Acoustics that seem to produce 'smoother' sounds from the tweeters. Also it is my understanding I can't just swap these speakers out without changing the hu since the rear resistance is 16ohms for the rear speakers. Do I have the the right information? I'll be using Soundstream Rubicon604 to dirve the front and rear speakers and Rubicon1002 to drive a 12" Xtant subwoofer that my friend gave me for free. Thanks.