Go Active Crossover or Upgrade existing XOs?

I agree with @erik_squires that active crossover design isn't that intuitive but it really isn't much more difficult than passive

And passive crossovers are difficult to do right!  :D That was kind of my point.

Yep... difficult to design but not that difficult to copy.

Anything is possible with money and time.  But then with too much money and time will lead to hubris.  And that's why God created men and women.  

OK, enough hubris from me.  

From your question it's obvious that you don't have the technical skills to start from scratch using any kind of active crossovers. To get it right is a complex process even for an experienced person, my recommendation is to leave it alone and save yourself time, money and frustration! 

From your question it's obvious that you don't have the technical skills to start from scratch using any kind of active crossovers. To get it right is a complex process even for an experienced person, my recommendation is to leave it alone and save yourself time, money and frustration!

Give the guy a break, will you!  He may actually know more than you.