It's Xaoc. Which I think might be Russian for "kickass!" There are so many sneaky and hidden functions in those (particularly when you add a module's expander) that you can just go on and on with them and it'll take you a while to exhaust the possibilities with ANY of their stuff. Batumi and Zadar are more or less "go-tos" for adding big bangs in small spaces, for instance. And when they go ALL OUT (think their Odessa module here), it really IS all out! Feckin' amazing design going on there...on both sound AND ergonomics.