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Join Date: Oct 2003
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partsexpress.com has lots of components and is pretty popular around here.
impedance is frequency dependant. if you don't have the tools to measure it, try to eyeball it off the spec sheet. just using nomimal resistance probably won't get you the results that you want unless you experiment quite a bit.
in addition to selecting crossover points, there is also the challenge of level matching the drivers. with different sensitivities, even if you get the crossover point right, it won't sound right because one driver will be louder than the other.