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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 07-15-2014, 10:26 AM   #1
Kimo
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Function of 'Speaker' Button in the Harmon Kardon System?

I'm referring to the speaker button on the console panel - above the ash tray --the actual button displays a speaker and is near the similar buttons for the heated seats and DSC - depressing it toggles green lit and OFF.

So it's not in the owner's manual, I no longer have the "radio" manual, and a search of the forum indeed makes reference to the button but doesn't actually explain it.

Mine has been hidden for years behind my aftermarket Nav display (activated I think) and I note that pressing it seems to provide more 'presence', but I don't really know what it does or how it works.

Can any of you enlighten me?
Thanks
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Old 07-15-2014, 10:31 AM   #2
BMWPower06
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I believe it activates and deactivates the DSP (digital sound processor)
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Old 07-15-2014, 10:46 AM   #3
Kimo
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Quote:
Originally Posted by BMWPower06 View Post
It activates and deactivates the DSP (digital sound processor)
Thanks for the response and for pointing me in a direction to search further.

I had understood, though, that DSP was NOT installed in ANY E46s, and the following thread seems to state the same -
http://forum.e46fanatics.com/showthread.php?t=721665

I'm now thinking that this button is simply some sort of surround / spatial enhancer.

Other thoughts?

(and I now see that the button is indeed mentioned in my owner's manual - page 104 as per the referenced thread)

Last edited by Kimo; 07-15-2014 at 10:51 AM.
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Old 07-15-2014, 10:49 AM   #4
Marek555
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From user manual:
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Old 07-15-2014, 10:53 AM   #5
Kimo
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Originally Posted by Marek555 View Post
From user manual:
Yep, see it now. Many thanks.
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