Will the Paradigm CC-350 match the 7seMK3?

Hi , I beleive the cc 250 was the match for the mk111,s. The 350 would be close , much closer than the 150 you are using. Cheers

Actually the cc-300 is the ideal match. I found one for sale but it's $50 more than the cc-350.

I stand corrected! Checked through all my old receits and it was a cc 300 that was the mate for the mkiii,s. I owned so many different paradigm speaker systems when I was more into home theatre . For what they could be bought for originally with good sized drivers close to full range the cc300 was a bargain IMHO. They are hard to come by used. Even where I live 60 miles away from the factory and every dealer sold paradigm it seemed and good deals were easy to get when new. Fifty bucks more... I guess it depends on the shape and if even with the added fifty its not too pricey. Good luck! Cheers.