The Sextetts never had foam on the baffle as far as I know. If foam is mentioned in connection with the Sexes, it's usually the foam that's inside the cup. Also, metal guard? We are talking about the baffle, right?
The K 241 (or, at the latest, K 250) and onward came with foam on the baffle (unlike the auction pictures of naked baffles would lead one to believe), though it seems that the type of foam changed from an early version that was quite light to a later and modern version that was/is thicker.
Yes, excuse me for my weird wording I did mean the baffle :>. The foam was mostly just for experimenting with the sound and for comfort, I knew from the start it would probably do more harm than good but I wanted to test none the less.
Edited by Baten - 1/9/13 at 3:34pm