I was at a local car audio shop recently and starting talking to one of the sales people. Since I'm still new to car audio, I asked him about active vs passive crossovers. He said that, to him, active crossovers aren't worth the money because manufacturers have already tuned their passive crossovers to the optimal frequencies. What do people here think about that? I'm not trying to beat a dead horse as I know there are a lot of threads on here about active vs passive, I just haven't heard this argument before and was wondering how to counter it.