By experimentation for my system I find that those crossovers work the best. Unfortunately, the high quality Sammi mid ranges that I use are no longer available. They were built to sell for $16 each, but Sammi couldn't find anyone to buy them at that price and ended up selling them all at a very steep discount. The have a 3.3 Xmax, and full copper voice coils. So 34 of them at the original price Sammi wanted would have been $540.

Additionally my system is tri-amped. The tweeter part of the array is 60w/ch, the mid range portion is 175w/ch, and the woofer(12 inch GoldSound poly props) is 350w/ch.

All of this(combined with 34 completely separate(1/2 inch open air space) midrange tubes adds up to a synergy that is not included in any plain box speaker system with a passive crossover, and a single amp.

So....I really don't know what to say to answer your other questions.

Marlboro