Improve on filter design

[TooDissing]

Description

The initial filter design is a 2nd order two way series filter, as depicted here:

The filter started as a Linkwitz Riley filter, but all values have been adapted to make the drivers merge better.
In order to make the two drivers level match, a resistor and a notch filter on the tweeter seems to be needed, but it would be great if this could be avoided. At least to some extend.