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Speaker cross-overs? (warfedale w70e)

jonny babylon's picture

I am wondering how to figure out cross-overs. I have Wharfedale w70e speakers, and there is no clear info anyplace on the net for values and wiring.
Any good books? The things have three coils, two pots (mids & highs), three caps, and something that looks like a high-temp resistor but with no markings!
There must be a science to reverse engineering these kinds of things. Any thoughts? Any info?
Thanks all.