Blu, it's curious that some owners of nearly full-range speakers and an excellent sub(such as the EP800)are hesitant to set the speakers at say, 80Hz rather than 40Hz. They're concerned about "wasting" a very small part of the speaker frequency range, while not expressing a similar concern about not using as much as half of the sub's range to its best effect.
As long as the sub isn't localized, setting the crossover to a higher number is the way to go, making maximum use of the frequencies it does best both because of inherent design together with the ability to locate it specifically for best reproduction of those frequencies.
A uniform 80Hz crossover is still suggested.
