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      08-26-2012, 08:05 PM   #200
Technic
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Drives: 2015 320i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

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The only microphone adjustment in this particular OEM DIRAC system was done at development, according to BMW. There is no active microphone adjustment in this system, only speed- and bass-equalizations.

One feature that really changes the audio response of this system is the speed-adjustment (GAL). Anything above 1-square will change the EQ curve that you set above 40mph or so.

This GAL implementation is the most aggressive that I have seen in all BMW systems.