Hello. I have a pair of Acoustat 2MH with MK-131 Interface. I recently re-foamed the woofers. I forgot to take pictures of the woofer connections. Does the big wire with the 330uf cap both go to positive terminal on the woofer? Small blue wire to negative? Or does the capacitor go across positive and negative of the woofer? Thanks
Hopefully AcoustatAnswerMan will chime in
Hopefully AcoustatAnswerMan will chime in
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Here’s a 2MH schematic I found. It shows a capacitor across the positive and negative woofer terminals. Or what I’m assuming is the woofer. I’m pretty sure my MK-131 woofer had the capacitor piggyback on the positive terminal. Can anyone help me figure this out? Thanks
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I don't have an MK131 schematic, so I can't be sure of the crossover arrangement. The schematic shown is not an official Acoustat schematic. But if that schematic is correct, it shows the capacitor connected from plus to minus of the woofer terminals, and a coil in series with the woofer. Then the only question is the polarity of the woofer with respect to the ESL portion. Being a 12 db/octave filter, it is probably connected out-of-phase with respect to the woofer.