Steve Thank you for the thorough information it confirms what I have thought which is that I while I love my old 930's, I will probably be happier when I can afford to add the 40's or maybe the 90's I figured that the tweeter match would be the center of my excuse to make a change. I do not make changes very often, as I know way to many people that upgrade only to find they went the wrong direction. Gerry I have to thank you for your work on such wonderful speakers, they have served me very well and continue to do so. They are currently matched to a Boston acoustics AVR7120 which is also a prized piece (I know it is really a Sherwood Newcastle, but the Boston has a nicer face and keeps the family name) Surrounds are a combination of CR towers ( I have to check to see which ones) and my old faithful HD5's. The current center is an MB Quart which can be harsh at times. source is currently Denon DVD-2910 but is also being updated with a used DVD-3800BDCI. Bass is backed up with an ancient Legacy Audio Foundation Subwoofer (2x12's in a ported enclosure) supported by an equally old Adcom GFA-555 series 1. Most of this is a collection of others getting the upgrade bug and not utilizing the excellent components they already had. the system primarily gets used for HT usage but I love my times when I can just sit and listen to some audio. I just discovered that my favorite artist (Al Di Meola) has released a new Blu ray disc in the past year and look forward to seeing what the combination of the new center and the lossless audio format will provide me.