I am looking to upgrade the crossovers in my Altec Speakers. As near as I can tell, I have Model 19 drivers (416-8b woofer, 811-8 horn, 802-8g driver) in custom cabinets with N801-8a crossovers. I am thinking a 1200 crossover point combined with new caps and pots would be beneficial. I have done research and some feel the "Altec" voicing will be lost and the original coils must be reused. Others disagree. I guess that leaves me a choice of obtaining vintage Model 19 crossovers and have them rebuilt or having something new like Zilch's Z19 built. Thoughts? Does anyone on this forum provide this service? TIA