Speaker problem??
Thread Starter
Newbie
Joined: May 2009
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C280
Speaker problem??
hey guys, recently I've noticed that every now and then wen listening to music, the music will quickly fade out and then go back to normal, it fades for no longer than a second and is only noticeable sometimes. It doesnt happen to all songs just some and doesnt happen all the time. anyone experience this too??
Senior Member
Joined: Jul 2008
Posts: 420
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From: Nor Cal
A Car
You probably have the Harman Kardon upgraded sound system. There is a tiny mic inside your cabin to monitor various ambient sound inside the car. The sound interfering with the primary music being played is recieved by the mic and is sent to the amp to equalize the sound to help compensate for the frequencies that cant be heard. (rough road, windows down can cause fractures in sound reproduction of the speakers). After ambient sound is analyzed, the amp equaliztion setting is changed and is sent to the speakers, therefore you are hearing the changes in volume at certain times. 
Senior Member
Joined: Jul 2008
Posts: 420
Likes: 2
From: Nor Cal
A Car
ohh, fade out completely?
im not sure 100% but thats all my knowledge of what could be going on. I know my car does the same thing, it will get louder, then start fading out to lower the volume when the cabin gets quiet.
im not sure 100% but thats all my knowledge of what could be going on. I know my car does the same thing, it will get louder, then start fading out to lower the volume when the cabin gets quiet.
MBWorld Fanatic!
Joined: Jul 2008
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2019 G70 6MT & 2022 Ford Maverick XL
I think all C-class cars have speed-sensitive volume and premium sound cars (Bose till 04.5 and H/K since) have the feature that overcomes ambient noises. Bose calls this AudioPilot or something. But I think Tony is having his car fade completely out.
Tony92 - Do you have the standard Audio20 or upgraded Harman/Kardon system? Both have amps, though.
Tony92 - Do you have the standard Audio20 or upgraded Harman/Kardon system? Both have amps, though.
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MBWorld Fanatic!
Joined: Jul 2008
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2019 G70 6MT & 2022 Ford Maverick XL
Nope. Speed sensitive volume does not make sharp or "quick" adjustments. I have the same Audio20 and this never happens to me no matter how fast or slow I go, or how quickly speed changes. You've got an issue somewhere. Are you under factory warranty by chance?
MBWorld Fanatic!
Joined: Jul 2008
Posts: 8,384
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2019 G70 6MT & 2022 Ford Maverick XL
If you can turn speed-sensitive volume off, I don't know how. I barely notice it in my car, though - not intrusive. It was much more intrusive in my 2007 Civic Si and is more intrusive in the 135i.
