Marlboro, Your right the ND20's are one of the best values around. I've used them in my club line array system that I designed using 32 aside. I'm using the B models so my C-T-C distane starts going to hell at about 14-15K on the high end, but on the low end I'm crossing over using a Behringer DCX digital x-over at 2.3k at 48db/octave LR filters, limiting the power to 275watts with no problems at all even for live PA. I can get plenty of hi end if I need it, using those.