Well of course there are a bunch of variables, but I made both boxes, which are very solid. Our systems aren't complex, just head units running after market speakers and an amp and a sub. My amp should push twice as hard, but my gain has to be turned up 3/4 of the way just produce the same amount as his is at 1/4 gain. Even when mine was in a hatch and his was in a trunk, his sounded better. He has his in a Lexus GS 400 right now, which has tons of sound deadening and it sounds better. Oh well, the mysteries of car audio!
