Quote:
Originally Posted by RL18
That crossover is interesting. I'm not sure what that three pin wire is for. Maybe there's another speaker in series with the front door midranges? I know my front door mids were parallel with my underseat woofers, so I'm wondering if you have another speaker wired in with the midranges and tweeters. I wish bmw was better about posting audio specs like you would find on aftermarket audio gear.
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This is what I believe is going on in the front doors. A HPF and an LPF in parallel. The grey ovals are soldering points on the diplexer. Now I'm just working on the B&W midrange schematic...
Updated 1/2; XO points; Colors are indicative of oem wires: blue = yellow/blue, yellow=solid yellow, black=black/yellow, red = power, black = ground;
From the12volt:
Lmk if anyone finds any errors...