I have come across a few gentlemen on AVS forum that have nothing but good things to say about the 4T's....Small size. Clean, powerful bass extension down to 40hz, suprisingly open soundstage, and they get real loud without barking...Very musical. Of course I'm not really worried about the extra Bass since I have a sub, what i really want is more soundstage extension and higher/cleaner volume in the midrange.
It's really hard for me to imagine them sounding so, conisdering how small those drivers are. In any event, I don't have to imagine much longer. My 5B's are en route to Aperion Headquarters to be exchanged for some 4T's. Right now I have some 4B's up front holding down the fort..The 4B's are definately more congested than the 5B's so I'm still wondering, how the heck they open it up so much with the 4T's. I guess it's all about giving the drivers some breathing room. But, I guess i'll find out soon enough.
Word on the street is that these puppies are hot....Ouch!