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Sonic Electronix

Alpine CDE-122 install resulted in little/no subwoofer output?


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I have that same head unit and i tested it with a dd-1 and mine does not clip at all, 35/35 so I turned the volume to 30 and turned the sub level control up till it clipped, it was on +12 when it clipped so it's on volume 30 with sub level at +11 you want bass at 0 as that will cause clipping. Your head unit might be the same or might clip before where mine does, caps are junk and useless so I would get rid of that bc that could be the prob, where is your amp grounded?

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so when you say your capacitor shuts down, i assume it has a digital voltage display, and it shows 0, so the amp gets no power,,most likely you have an open capacitor, just get rid of it and power directly to amp

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