I suspect that the sound quality of most all of the digital crossover candidates that I mentioned would be between acceptable to excellent so you'll need to do homework to ascertain which one sounds best to you. You might find some help from prosound guys who use the various units for the Ashly, BSS, DBX, and such. I haven't used enough of the other digital active crossovers to be able to judge all of the merits or demerits of each one. I would suggest that you spend time to understand how the various candidates work and what kind of care and feeding they take to be implemented. For example, the Behringer DCX 2496 has an Achilles heel in that it does not have volume control of the 6 channels after digital processing. Why some others have had success working around that issue with the Behringer, this alone was a killer for my work.

Jim