I recently picked up a set of MB Quart Components. The Woofers say QM 160 and say made in Germany and the Crossovers say 215.03 on them. I have tried to look them up and can't find any info on this same set. The ones I have seen have different crossovers. Are they any good? I picked them up for 40 buck the other day and thought it couldn't be that bad of a price. I have read that the old school quarts are great. Is this one of those sets? Was this a high end or mid of the line set? Any info would help. Thanks