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I've got a schematic that almost looks like the coil is across the woofer and tweeter and doesn't show a series cap on the tweeter. Could it be so old it's for the Piezo version? The coil is in parallel on the Woof and the cap in series with the + Tweeter, right?
There has always been a 0.5mH coil in series with the woofer, even back when we were running piezos. It's inline on the "+" wire. So that's probably the coil you're talking about. There was no capacitor in either the woofer or tweeter circuit on the old piezo models. The tweeter circuit now has a series 10uF capacitor, and a shunt 16Ω resistor. So put the resistor directly across the tweeter leads, and put the capacitor inline on the "+" wire.