Problem Solvers Needed-Got my New XOs installed and am worried....

Do your speakers have controls on them?  Is so, mark where they are set and then experiment.  You might also experiment with speaker placement.  Any change to the system that changes the sound (the reason for the change in the first place) requires other changes to optimize the sound.  You need to work with what you now have to get the best out of it.

You should also give yourself some time to get used to the new sound.  In time you might like the change.

Have you talked to the builder about the problems you hear?  The builder might be willing to make alterations based on you feedback.

If you loved the sound of these speakers what were you trying to achieve with this crossover??  I can perfectly understand replacing the stock crossover with higher quality caps, coils, and resistors.  But did you give him license to rework the crossover??  That seems like a roll of the dice if so.  Did you contact this individual and voice your displeasure?  It would be fairly easy in some cases to adjust the resistor values and increase the tweeter output to its original level.  Curious how you connected with this "expert."  There are a few talented people out there that do this type of work.  These people also have many reviews from satisfied customers.

chorus, Make sure they are hooked up correctly. Without speaker impedances and the values of the components it is impossible to make an accurate statement. Somebody may have goofed up on his math. I would put the old ones back in for the time being. Draw a schematic of the new crossovers with the impedance of the speakers and I'd be happy to run the math for you. You may be able to adjust a value or two and get the right result.  

You might reach out to Danny (GR Research). He improves a lot of speaker XOs. Send him a couple pictures

hth

Contact the expert who did the crossover and tell him what you're hearing.