After reading Wayne's Filter Q post I think I should add this. The nearly diagonal rising response caused by the orphaned comp circuit, is seen by the listener as a dip in the mids around the crossover region. Since I ragged on the Rane's midrange, I should recant. I cannot say anything about that in light of the compensation curve being off. I think for a person better prepared to create and measure active compensation, or with a good parametric EQ, active x-overs could be great. To Wayne's credit he is honest about his design. A lot of guys with stuff that sounds 1/2 as good blow superlative smoke every time they opened their mouth. It is simple, elegant and unintimidating. I think that very fact makes it easy to underestimate how vital each part is to the great sound I'm finally getting. I will bet others have underestimated this too.