active crossover recommendation

@sozocaps , if you are going to do this do it right. Analog crossovers always have issues and are not very flexible. You can not adjust group delays. Digital active crossovers that operate in 24/192 or above are far superior. Check out DEQX's soon to be released Pre 8. It actually has a full 4 way crossover so you can add a sub if you like and it will test each driver and correct them all in time and phase. It will also establish a flat frequency response and from there you can adjust it for taste. This is the current state of the art and it is not insanely expensive. 

The DBX 234XS is the best overall choice I know of. At $319 it supports 2 X 3-Way channels if need be with easy setup. It uses the highly desirable Linkwitz-Riley 24 dB/Oct filters, which generally aren't used in passive designs because of parts count and cost issues. Its only drawback is the use of XLR balanced connectors, so you’d need 2-RCA to XLR Male for the input, and 4-XLR Female to RCA Male for the outputs. The DEQX Pre-8 looks awesome, but it definitely won’t be cheap.

@sozocaps 

I use a Marchand Electronics XM44-3 Crossover.  You chose the x-over points and the slopes.  Those are plug and play modules, so you can change them.

Mine is SS, but he also makes tube versions.  You'll find his site very easily.

Regards,

barts