what the hell is this sound?
Thread Starter
Joined: Mar 2005
Posts: 1,356
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From: Los AngeLes, Ca
what the hell is this sound?
i installed 2 amplifiers today:
-kenwood KAC-8452 (4 channel)
-precision power dcx 1000.1 (mono block)
for some reason, i'm getting a high-pitched whine annoying long beep noise with my music. they both work flawlessly (1) at a time, but once i run both, i hear this noise. i'm lost... my car was on but in park the entire time.
some reasons but i doubt they are the causes.
-my amplifiers are jb-welded to the bare chassis of my vehicle. it is gutted by the way.
-amplifers and capacitor are all ground to different points of the vehicle.
Modified by idriveadelsol7 at 3:44 AM 7/27/2005
-kenwood KAC-8452 (4 channel)
-precision power dcx 1000.1 (mono block)
for some reason, i'm getting a high-pitched whine annoying long beep noise with my music. they both work flawlessly (1) at a time, but once i run both, i hear this noise. i'm lost... my car was on but in park the entire time.
some reasons but i doubt they are the causes.
-my amplifiers are jb-welded to the bare chassis of my vehicle. it is gutted by the way.
-amplifers and capacitor are all ground to different points of the vehicle.
Modified by idriveadelsol7 at 3:44 AM 7/27/2005
Old Fart
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Re: what the hell is this sound? (idriveadelsol7)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by idriveadelsol7 »</TD></TR><TR><TD CLASS="quote">i installed 2 amplifiers today:
-kenwood KAC-8452 (4 channel)
-precision power dcx 1000.1 (mono block)
for some reason, i'm getting a high-pitched whine annoying long beep noise with my music. they both work flawlessly (1) at a time, but once i run both, i hear this noise. i'm lost... my car was on but in park the entire time.
some reasons but i doubt they are the causes.
-my amplifiers are jb-welded to the bare chassis of my vehicle. it is gutted by the way.
-amplifers and capacitor are all ground to different points of the vehicle.
Modified by idriveadelsol7 at 3:44 AM 7/27/2005</TD></TR></TABLE>I think your fix is right here......
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by idriveadelsol7 »</TD></TR><TR><TD CLASS="quote">some reasons but i doubt they are the causes.
-amplifers and capacitor are all ground to different points of the vehicle</TD></TR></TABLE> a sure way to get a ground loop, try grounding to the same place, the other thing I would be concerned about is some amp chassis have to be isolated from the chassis of the car
94
-kenwood KAC-8452 (4 channel)
-precision power dcx 1000.1 (mono block)
for some reason, i'm getting a high-pitched whine annoying long beep noise with my music. they both work flawlessly (1) at a time, but once i run both, i hear this noise. i'm lost... my car was on but in park the entire time.
some reasons but i doubt they are the causes.
-my amplifiers are jb-welded to the bare chassis of my vehicle. it is gutted by the way.
-amplifers and capacitor are all ground to different points of the vehicle.
Modified by idriveadelsol7 at 3:44 AM 7/27/2005</TD></TR></TABLE>I think your fix is right here......
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by idriveadelsol7 »</TD></TR><TR><TD CLASS="quote">some reasons but i doubt they are the causes.
-amplifers and capacitor are all ground to different points of the vehicle</TD></TR></TABLE> a sure way to get a ground loop, try grounding to the same place, the other thing I would be concerned about is some amp chassis have to be isolated from the chassis of the car
94
Thread Starter
Joined: Mar 2005
Posts: 1,356
Likes: 0
From: Los AngeLes, Ca
Re: what the hell is this sound? (fcm)
ok... i grounded everything to 1 point and i am still getting noise. the only thin i haven't done yet is move the amplifier... which i cannot because it is permanently stuck ahahaha. jb weld does not conduct electricity but i think that's the problem right there... is there any other way i can get around it such as purchase a noise filter or something?
Old Fart
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Re: what the hell is this sound? (idriveadelsol7)
Geeez, hope you don't have to remove an amp for repair You can try RCA ground loop isolators http://www.scosche.com/scosche.aspx?CategoryID=33 like this 
94
You can try RCA ground loop isolators http://www.scosche.com/scosche.aspx?CategoryID=33 like this 94
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