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Help me fix my ground loop please


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you have ground to the battery? try a new battery. and check the battery ground.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Yes, I have the battery grounded. I have one run from the front battery (3/0) going back to the rear battery, and I also have a run of 1/0 grounded at the engine going to the rear battery. With or without the 1/0 connected I still get noise.

Edited by lanman31337

2 - Audiopipe AP30001Ds

1 - Lanzar Opti Scion 600.4

4 - Lanzar Optidrive 1232D's

1 - Lanzar Opti 5.1

1 - Lanzar Opti 6.1

1 - Lanzar Opti 6C midbass

1 - Alphasonic PCT6551

1 - Lanzar VX830

1 - JBL 22 band EQ

1 - Lanzar SDBT75NU

1 - AudioControl Epic160

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try switching the battery. there could be something funky. if im missing something tell me to shut up. lol

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

It did this with two other batteries. Both have been replaced. It did it when I had the temple of boom initially. I wanna get it fixed so I can play the volume down some :)

2 - Audiopipe AP30001Ds

1 - Lanzar Opti Scion 600.4

4 - Lanzar Optidrive 1232D's

1 - Lanzar Opti 5.1

1 - Lanzar Opti 6.1

1 - Lanzar Opti 6C midbass

1 - Alphasonic PCT6551

1 - Lanzar VX830

1 - JBL 22 band EQ

1 - Lanzar SDBT75NU

1 - AudioControl Epic160

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Share on other sites

at this point it cant be anything audio related. there is something funky but im fresh out. batt alts rcas head unit amps thats just about everything.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

Link to comment
Share on other sites

You know and I know that we know that we're no dummies. When we both get stumped, we're stumped! I fried both of my 8's in the rear deck simultaneously, magic smoke and all. Don't wang and plug in rcas, speakers don't like that.

2 - Audiopipe AP30001Ds

1 - Lanzar Opti Scion 600.4

4 - Lanzar Optidrive 1232D's

1 - Lanzar Opti 5.1

1 - Lanzar Opti 6.1

1 - Lanzar Opti 6C midbass

1 - Alphasonic PCT6551

1 - Lanzar VX830

1 - JBL 22 band EQ

1 - Lanzar SDBT75NU

1 - AudioControl Epic160

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Time to shit bricks ladies and gentlemen. I put a Radio Shack noise filter in my constant power line. There is no more noise. Zero at all. My noise filter cherry has been popped. I've never ever ever had to use one on car audio.

2 - Audiopipe AP30001Ds

1 - Lanzar Opti Scion 600.4

4 - Lanzar Optidrive 1232D's

1 - Lanzar Opti 5.1

1 - Lanzar Opti 6.1

1 - Lanzar Opti 6C midbass

1 - Alphasonic PCT6551

1 - Lanzar VX830

1 - JBL 22 band EQ

1 - Lanzar SDBT75NU

1 - AudioControl Epic160

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im having the same problem im going to try a noise filter also is there one that you will not loose midbass with

current set-up

kenwood ddx 712

clarion eq

focal 165 k2p front

focal 165v2 rear

2 re audio sexxx 12

us amps md3d

us amps md42

1 optima yellow top (rear)

1 xs power 5100r (front)

big 3 and 1 run 1/0 stinger wire

my build

my rebuild

smd2.gifduck.jpg

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I lied. I fired it up again, and the noise is there. Time to try a ground loop isolator.

2 - Audiopipe AP30001Ds

1 - Lanzar Opti Scion 600.4

4 - Lanzar Optidrive 1232D's

1 - Lanzar Opti 5.1

1 - Lanzar Opti 6.1

1 - Lanzar Opti 6C midbass

1 - Alphasonic PCT6551

1 - Lanzar VX830

1 - JBL 22 band EQ

1 - Lanzar SDBT75NU

1 - AudioControl Epic160

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Share on other sites

The problem with most of the cheaper ground loop isolators is of course you lose a lot of your midbass, since that's what the frequency the noise is. It's a 1997 Pontiac Sunfire.

You need a transformer based one. I don't know how the cheap ones work but the good ones actually electrically isolate the source from the device. This prevents the difference in potential between the 2 that creates the ground loop. Blocks DC but not AC (i.e. music) so it won't affect your midbass at all.

goodgrammarbc7.gif

10.x volts fo' life!

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