Food for thought. Picture an amplifer playing full range into a speaker load. By using two different terminals to feed the upper and lower portions of a system we still have an amplifer playing full range into a speaker load. Internally the crossover splits the signal but it doesn't change the amplifer playing full range. Now picture a speaker with a network that is designed to be crossed over externally. We supply an electronic crossover rolling off the amplifer at the desired frequency now creating a more efficient system. If a speaker can be driven without an electronic crossover it is not intended for biampflication. You may be doing more harm than good. Phase,alignment, load, etc. Food for thought.
