At any rate, I'm not comfortable that a basshorn folded like the LaScala should be used up past the bass range. When I use a basshorn that is folded this way, I tend to also use a midbass driver to cover the span between basshorn and midrange. The only thing I don't care about Klipschorns is they don't have a folding pattern that lends itself to propogation of midrange frequencies and I think they push them too far. I wouldn't suggest using one in this manner.