[fdriller9]

Well if you sealed the enclosure off with dynamite you cut down the total internal volume of the enclosures as they are channelled into bigger chambers behind the side skirts.

Take the dynamat off and see if it sounds better. Or try to find that port into the chambers and unblock it.

Dynamite really isn't necessary in the enclosures. However it could be useful behind the sideksirts as the chambers will cause the side skirts to rattle with loud bass. Not sure where the exact location of the chambers are but it's somewhere behind he skirts, under the enclosures.