Whoa Tom, you are a huge fountain of knowledge, thank you for sharing that information!!! Its very cool to know these are the older crossovers from the factory. I guess I should have trusted my ears over my eyes for these.I saw all the various bypass and parallels and made the assumption these were modded, there is a noticeable difference in crossover build quality from one speaker to the next. I will see if I can shift things around in the one crossover to clean things up. I am going to read the thread starting where Jafant linked to catch up to what has been posted, hopefully that will help me decide what path to take with these, the board in one speaker looks like it will be tough to upgrade with very tight fit and some funky wire routing in some areas, sort of leaning towards new boards so I can just keep these as they are and also to retain some history a bit. I dunno, what do you all think? Thanks all for your help!