Distance from the wall - that’s true, front is in the same place but T5V back is closer to the wall. No other way to place it in my room, really. Also T5V have back bass reflex and it’s aimed at a corner, few cm from the wall. A4V has port in the front.
The difference is so big, heard not only by me, that it’s difficult to believe that their looks etc have such a psychological effect.
My first thought after connecting them was that they’re somehow broken. I don’t think both would be broken the same way, though?
I’ll try to measure them somehow, although I don’t have a „pro” measurement microphone. I do have a mic from Denon Audyssey, perhaps that can be somehow used. Also a Rode NTG1 shotgun mic, probably worthless for measuring stuff.