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      04-22-2009, 09:20 PM   #4
Technic
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Drives: 2012 E92 M3, 2014 528i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

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2004 M3  [0.00]
The OEM woofers are wired in stereo.

20V at 4 ohms will give you a max power input of 100W, which could work for awhile with the Premium OEM amp 200W peak per woofer at 7 ohms (37V) as long as you do not push the volume to more than half.

I think that you should get a Navone custom LOC (40V max input) to be on the safe side if the only thing that you are looking for is to add an aftermarket amp to a pair of 10" (if they can fit under the seats). Or just wait for this mObridge MOST to RCA preamp converter to be available and just remove completely the OEM amp from your system.
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