I am also looking at up-grading my system. All the speakers on my short list are ported- Montana KAS, JMlab Utpoia, the Sonus Faber. I have owned Maggies, transmission line and sealed speakers. The listening room has a lot to do with the correct speaker type. If you buy from a local dealer, get a 7-10 day return policy and try it out. I agree with some of the previous comments relative to synergy among the components, cables and speakers. Trust your own ears and experiment. Good luck and buy what YOU like.
