I am finally diving into to trying to build my crossovers for my ultimate speaker. I have purchased and will be using a pair of 2245H for sub/low freq, 2206H for midbass, 2417+2432 for upper mid/low treble and a 2405H for my high freq. I have several active crossovers but will probably biamp with a mid/high quality components passive crossover for the upper freqs. Before I reinvent the wheel, could anyone remember any threads with similar designs, or aware of an off the shelf JBL crossover that may be easier to modify then start from scratch. I planned on doing a psuedo 4345 like design and had access to the crossovers for those but the impedances are different and the horn is equalized for the other horn. Also I want to incorporate all the current mods. I have had people crunch the numbers and guide me through the pitfalls on several smaller designs but I could use a referral for someone with JBL experience who could help me do this (possible barterring involved ) or would appreciate any input about directions, pitfalls, things to avoid etc. I have been building speakers at different levels of success since I was 8 years old, but I have never had this much invested in building a speaker both money wise and emotionally and want to do it right.