gdnbob, Stop. Respectfully, your narrative is not grounded in truth and reality. Do your homework. Generally speaking, these types of modifications require slight adjustments and usually take an hour or two to correctly implement. I'd do a video but don't want to give away trade secrets. Understand there are simulation tools available today that can do a days work in 5 seconds. Furthermore, arguing with a guy that has more than a few patented crossover circuits isn't going result in a score for you on this topic. .
Eric Alexander