I am building a new house later this year with a dedicated theater room and have a pair of 15 year old Acoustic Research TSW 510 speakers that I refuse to part with. It would take at least $1500-$2000 to replace those speakers. but I am planning a 7.1 system. I have an Infinity Center channel that I am happy with, but am still open to suggestions there, because I can use it in my downstairs system. I need surrounds that will go well. I like direct radiating speakers exclusively. Go easy on price, as I need four of them for my system. Thanks for the help.