Scratching Noise

lionheart133 · 2nd December 2008, 22:45

Hi,

My ICE knowledge is really poor so you would have to bear with my amateurish question

I have a front component(JBL) and rear coaxial (JBL) for my car.

It makes a scratching sound when a bass note is played.

Last time i took up the complaint with my ICE guy, he changed some settings in the HU and everything was back to normal.

Please do advice

Regards

Lnhrt

XetaGLGRocks · 3rd December 2008, 13:43

Quote:

Originally Posted by lionheart133

Hi,

My ICE knowledge is really poor so you would have to bear with my amateurish question

I have a front component(JBL) and rear coaxial (JBL) for my car.

It makes a scratching sound when a bass note is played.

Last time i took up the complaint with my ICE guy, he changed some settings in the HU and everything was back to normal.

Please do advice

Regards

Lnhrt

What HU do you have? Are the speakers being driven by the HU directly, or do you have an amplifier?

As you are saying that the installer tweaked the Hu to get rid of the scratching noise, one possible cause of that noise might be due to high bass setting on your HU. If you bass setting is very high on the HU, then at higher volumes the sound may crack.

However, please post the details of your complete setup and then people may be able to help you out.

DerAlte · 3rd December 2008, 14:02

Right said, Xeta! Quite likely the speakers were being driven to 'cracking' sound due to their inability to handle low frequencies effectively at that power level.

It is also possible that the HU internal amp is the culprit - in the previous setting the amp was clipping, which can translate to 'scratching' noise if the speakers reproduce it faithfully.

2nd December 2008, 22:45	#1
lionheart133 BHPian Join Date: May 2008 Location: Blore Posts: 49 Thanked: Once	Scratching Noise Hi, My ICE knowledge is really poor so you would have to bear with my amateurish question I have a front component(JBL) and rear coaxial (JBL) for my car. It makes a scratching sound when a bass note is played. Last time i took up the complaint with my ICE guy, he changed some settings in the HU and everything was back to normal. Please do advice Regards Lnhrt
	() Thanks

3rd December 2008, 14:02	#3
DerAlte Senior - BHPian Join Date: Mar 2007 Location: Bangalore Posts: 8,069 Thanked: 2,919 Times	Right said, Xeta! Quite likely the speakers were being driven to 'cracking' sound due to their inability to handle low frequencies effectively at that power level. It is also possible that the HU internal amp is the culprit - in the previous setting the amp was clipping, which can translate to 'scratching' noise if the speakers reproduce it faithfully.
	() Thanks