active crossover recommendation

The fellow is named Danny Richie, but I don't think he builds crossovers. He sells DIY speaker kits, which include the parts for making the passive crossover filters the loudspeaker uses.

Old saying #1: Money talks. 

Old saying #2: It doesn't hurt to ask.

Three-way is not easy to find. You might evaluate Marchand, as previously suggested.

This could be worth a look.

Albs UWE-10

Professional audio sources have them like Sweetwater https://www.sweetwater.com/c445--PA_Crossovers

You tube has videos on them too like one from maufacturer Behringer 

I don't know how they sound in an "audiophile" system but maybe worth a try.