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In Reply to: RE: New Clues in the 3.7 Crossover Mystery posted by Davey on February 06, 2015 at 09:55:37
I had exactly the same thoughts.
In any case, it looks like the crossover is just a standard 3-way 1st order series. It would be nice to know the impedances of the drivers. (I suspect the standard 3, 3.3, 4.0 for the tweeter, mid and woofer) and the inductance of the coils. Perhaps someone with a 3.7 would be willing to measure the resistance across the mid and woofer --no surgery needed other than opening the access panel.
Edits: 02/06/15Follow Ups:
You can't measure the midrange driver without a wire disconnection or two since the large inductor shunts it. The woofer can be measured pretty much directly via the positive and negative terminals. (One inductor in series which can be subtracted.)
Regardless, without the L value of the inductors, it's difficult to determine the exact alignment.
Did you determine the capacitor values by sleuthing that photograph?Dave.
Edits: 02/06/15
I think the mids are about 6 ohms. The foil is 0.001" x 0.1" and about 48 feet long.
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