Cowon DC-DC adapter noise!

emarkay · 06-09-2008, 08:45

Horrible alternator and other electrical noise coming through the adapter!

Is this defective or poor design?

I will check grounding and all that tonight when i get home, but need to know if there are others with noisy car adapters?

Thanks.

MRK

doniago · 06-09-2008, 11:50

First I've heard of it.

breakfastchef · 06-09-2008, 19:20

What type of adaptrr are you using? How is the adaptor connected to the car sound system? More information is needed.

emarkay · 06-25-2008, 13:19

Sorry for delay

It's the car, not the unit - still debugging, but anything on the ground side when the car is running, transmits spark and alternator loud noise to the L and R inputs, when they are grounded, and leakage when the connectino is made to any power unit. - it's a 1984 Caprice.

2 different X5's do it, and a USP adapter power unit does it too, so therefore, it's the car.

breakfastchef · 06-25-2008, 18:54

A cheap fix may be to get a Radio Shack ground loop filter. It plugs in line between the X5 and the input adapter. If it does not work; return it for a refund.

doniago · 06-25-2008, 19:20

When I had an issue with car noise going through my speakers I was able to eliminate it by switching to a more heavily shielded (but still Radio Shack quality) cable.

06-09-2008, 08:45	#1
emarkay Napster when it was free Join Date: Nov 2006 Location: Southern Indiana, USA Posts: 55	Cowon DC-DC adapter noise! Horrible alternator and other electrical noise coming through the adapter! Is this defective or poor design? I will check grounding and all that tonight when i get home, but need to know if there are others with noisy car adapters? Thanks. MRK __________________ *Music is reversible, but time is not....*

06-09-2008, 11:50	#2
doniago I, Like, Do Stuff Here. Join Date: Jun 2005 Location: Burlington, VT Posts: 4,651	First I've heard of it. __________________ DonIago Iron Mod "When you do things right, people won't be sure you did anything at all."

06-25-2008, 13:19	#4
emarkay Napster when it was free Join Date: Nov 2006 Location: Southern Indiana, USA Posts: 55	Sorry for delay It's the car, not the unit - still debugging, but anything on the ground side when the car is running, transmits spark and alternator loud noise to the L and R inputs, when they are grounded, and leakage when the connectino is made to any power unit. - it's a 1984 Caprice. 2 different X5's do it, and a USP adapter power unit does it too, so therefore, it's the car. __________________ *Music is reversible, but time is not....*

06-25-2008, 19:20	#6
doniago I, Like, Do Stuff Here. Join Date: Jun 2005 Location: Burlington, VT Posts: 4,651	When I had an issue with car noise going through my speakers I was able to eliminate it by switching to a more heavily shielded (but still Radio Shack quality) cable. __________________ DonIago Iron Mod "When you do things right, people won't be sure you did anything at all."

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06-09-2008, 19:20	#3
breakfastchef Senior Member Join Date: Jan 2006 Location: South Florida Posts: 773	What type of adaptrr are you using? How is the adaptor connected to the car sound system? More information is needed.

06-25-2008, 18:54	#5
breakfastchef Senior Member Join Date: Jan 2006 Location: South Florida Posts: 773	A cheap fix may be to get a Radio Shack ground loop filter. It plugs in line between the X5 and the input adapter. If it does not work; return it for a refund.