//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif I just had a 13W7 installed in a sealed Prowedge enclosure and my install guy recommended me buy a ported enclosure that it would make a world of difference. He said that it would be a whole lot louder. Is it true? What would be the difference as far as in sound if I were to change over. Thanks