Looks like you guys have been busy, Andrew!!
Can you tell me/us what advantage there is in going to a dual chambre design on the EP800? does it increase cabinet pressure thereby reducing distortion vs a shared chambre?
The advantage has to due with the distribution of air pressure inside the cabinet and the interaction of the two woofers with this common volume of air. The separate chambers do result in higher absolute back pressures on each woofer than with a shared volume by removing this interaction. This then leads to a reduction in distortion at high output levels.
