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Old 04-16-2017, 09:04 AM   #1
parxuk
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Join Date: Jul 2015
Location: UK
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My Ride: E46 330CI Cab
E46 Harman Kardon mid-range speaker polarity/wire colour help please

Both the front door mid-range speakers need replacing in my Convertible which has the Harman Kardon speaker upgrade.

Im replacing the speakers and using the guide as described here:

HK Midrange Speaker Replacement DIY - Bimmerfest - BMW Forums

But there is a conflict with regards to which wire (red or black), is to be connected to the positive or negative terminal.

Has anybody got any experience with regards to which is which?

Thanks in advance
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Old 04-16-2017, 04:49 PM   #2
nealfromnz
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Red to positive
Black to negative

That will keep them in phase with your tweeters and midbass.
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Old 04-17-2017, 02:31 AM   #3
parxuk
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Great, thanks for the confirmation.

It's what the OP thought in the post i linked to, but somebody else disputed it.

Generally speaking it seems red is positive, so it makes sense BMW would have done it this way.

Thanks again.
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Old 04-17-2017, 04:03 AM   #4
nealfromnz
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Quote:
Originally Posted by parxuk View Post
Great, thanks for the confirmation.

It's what the OP thought in the post i linked to, but somebody else disputed it.

Generally speaking it seems red is positive, so it makes sense BMW would have done it this way.

Thanks again.
Some people like playing with putting tweeters or mid ranges out of phase but it generally messes up the sound stage and you can end up with some frequencies cancelling each other out.

You can actually try it as it won't damage your speakers . Just a pain to pull off the door cards again to correct it.
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