Would the Polk RTI12 be an upgrade over Aperion speakers. You can get great prices on the RTi12 right now.
I own Aperion 633T tower speakers and 634VAC center channel. The 6T is a lightly upgraded 633T.
(I also have a very nice Martin Logan subwoofer and nice rear speakers in my ceiling).
The Aperion speakers are great for surround sound. But, the towers are not good for stereo music.
I think that is because the center channel is far superior to the towers. The center is a 3 way speaker while the towers are just 2 way. The center has the same 2 bass drivers and tweeter as the towers but also has a midrange speaker.
In stereo, with just the towers, there seems to be something missing in the 633T tower speakers, especially in the midrange. Also, they don't seem to handle complex music very well.
So, would I expect an upgrade in sound if I went to the RTi12? (I can them and a CSi5 center channel for under $800).
Note that Polk told me that RTiA9 is very close to RTI12 and suggested I go with the best deal between the two.