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      03-21-2010, 06:13 PM   #15
gIzzE
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Drives: Mercedes ML, F25 X3 and 2.8i Z
Join Date: Apr 2006
Location: Norfolk, UK.

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The BMW headunit outputs 12v at around 80% volume, and then it clips, so I would set the front gains to minimum as this is 13v input, and then you will have to adjust the subs a liitle higher as they are not as senitive.

Hold on, did you split the front out to the two inputs or did the amp split the signal internally??