I had always been under the impression that a sealed box would reduce the cone excursion as opposed to a vented one. Is PE correct in saying that the vented enclosure is the one that reduces cone excursion? If they are correct, wouldn't a driver in a ported enclosure have less distortion, be more controlled and handle more wattage than if it was in a sealed enclosure? (I thought the cone would move more in a vented enclosure due to some of the air coming out through the port.) I'm confused because from what i've read, the driver would be more controlled and handle more wattage in a sealed enclosure. BTW, I'm assuming that cone excursion = the cone's movement in and out, so the less or the shorter the movement of the cone, the less distortion and the more controlled the sub will sound. thanks.