The problem is changing for better parts may not always give you a better sound. The crossover is designed with all the parts contributing to give the sound the designer intended. If you change one the balance is changed and you have to know what to do to restore it. That is if you want the kind of sound you have now, just better. Don't underestimate the improvement you can get by "tweaks". Changing the internal wiring on my Spendor S 100s to the same type as my main cables [Cardas] gave a considerable improvement without altering the "voicing" of the speaker. I contemplated both going through the existing crossover and going to active drive but decided the problems were more than I wanted to deal with.
