I dont know if you are interested, but I have a couple sets of mb quart 6.5 comps...
1st set is mb quart "discus" series, I upgraded the highs and xovers to "reference" series ones. decent midbass, $100 shipped, and the 2nd set is mb quart "Q"series, high end.....great mids, and highs.....one of the best I've used lately....$175 shipped
I can get pix if ya want, but the "discus's" are still installed in my girls car......never seen power other than from head unit.