Thanks, it makes sense now. I completely forgot that it might have been "power amps professional heritage" and not the button-infested faceplate integrateds.
@pops: I totally agree on legacy Thiels. I had a pair of CS6s that I sold recently, keeping the 2.4s. Those bottom mounted binding posts were not only a PITA to get to while precariously tilting the cabinet if no one was around to assist, but, unless one had the spikes installed and adjusted fairly high, there was never enough clearance for my banana terminated speaker cables to make the 90 degree turn from vertical to horizontal. I’m happy Jim or someone at the company finally saw the light and mounted them appropriately on the back panels for later models.