I just purchased a pair of Klipsch WF-35's and am reading that a crossover upgrade makes these speakers sound equivelant to a $3,000 pair (I know that might be over the top). I am curious about exactly what components and tolerances I should use to build the crossover? I am also going to replace the 18 gauge wire inside with 12. I also read that just buying a pre-built 2,500hz crossover from PE is not the way to go. I love having my music sound as good as I can so any help would be much appreciated. I guess I'm asking someone who really knows what they are talking about "if you were going to build the crossover for these speakers what would you do?"