Phooey on me: there is a really good reason why crossover slopes aren't symmetrical, but I can't remember it. (I'll ask at HTF...)

There is no inherent problem with asymetrical crossover slopes. Most pre/pro/receiver manufacturers do it this way. I have seen many ruler flat room freq response curves with this kind of setup.
_________________________
If it's not worth waiting until the last minute to do, then it's not worth doing.

KevinVision 7.1 ... New and Improved !!