Currently in the process of building biased 3155 networks based on 4313b's "Final Revision Schematic".

Of note regarding these two networks are the varying crossover frequencies between the woofer to mid-bass (250hz vs 290hz) and the 2405 to the CD (9khz vs 10khz).

Seeing as the HPF/LPF for the woofer is done via a electronic crossover am I able to just leave it at 250hz? I am more concerned with the new crossover point between the CD and 2405 tweeter. Am I going to have to upgrade to 2441 diaphragms or is the 2440 capable of 10khz without any major negative drawbacks.

I have always intended to change the diaphragms to the 2441's so if this is necessary it would be a first priority of mine.