I was trying to think of them and that went completely over my head. For others that may have missed it also TCAB. This was my first thought. Their dual CMP8 design looked interesting. you mean this one http://www.nolteaudio.com/catalog/product_...3g8nsij3t658kc3 I was interested in some of the claims and hype, but I more of the kind of person that likes to try and design and build myself. I was looking for a snailshell design for a while ago but gave up. So was I. I think about 18 months ago I was on the search to learn how to properly design a SN or TL. Just did not get far enough into it.