Hey, I was wondering if anyone is very familiar with MB Quart. I was looking at some 15's (MB Quart Reference Series 15") and the specs are alot like the specs of the 15" kicker cvr's that I am thinking about getting. I really like the look of the MB Quarts and I definatly love the price tag ($130 on WoofersEtc.com) but I wanted to know how good of quality MB Quart is. I see that they have treated paper diaphrams and that doesn't sound very sturdy so any input on these subs would be appreciated.