No final decision on the 533-Ts yet, I am still experimenting.
It will be a hard decision.
Ken, since you are among the few (only one?) who has both 533T and 633T in the same setup...could you give your impressions on the differences in their sound ?
Before I bought my Aperion system I exchanged my credit card for a pair of used 633-Ts and brought them over to a friend's house who had a pair of the Rocket 850s and was very interested in hearing the 633. I wrote about this quite awhile ago (last April) -
http://www.aperionaudio.com/forum/shwmessage.aspx?forumid=2&messageid=2556
Everything else was individual.
I read this article when lookinhg at Axiom speakers and was aware of the issues. This is why I like Aperion's front ported design and I have the speakers sticking out 1/2" from the front face. Not ideal, but...
It is all about trade-offs!