Alternator whine / Ground Loop
#12
08-08-2006, 08:23 AM
RE: Alternator whine / Ground Loop
I'll see if I can find a closer one.
The equipment I have is - Alpine IVA D-100, Alpine SPR-17LP (rear doors), Alpine SPR-17LS (front doors), Audiobahn 4004T and 8000T amplifiers, Q-logic 10sub box (driver side) with an Alpine SWS-1042D sub, Alpine 6 disc CD/MP3 player, Audiovox DVD player, Myron Davis 7in Headrest screens. I replaced my stock battery with an Optima Yellow Top battery. Thats all my equipment.
Jeff
The equipment I have is - Alpine IVA D-100, Alpine SPR-17LP (rear doors), Alpine SPR-17LS (front doors), Audiobahn 4004T and 8000T amplifiers, Q-logic 10sub box (driver side) with an Alpine SWS-1042D sub, Alpine 6 disc CD/MP3 player, Audiovox DVD player, Myron Davis 7in Headrest screens. I replaced my stock battery with an Optima Yellow Top battery. Thats all my equipment.
Jeff
#13
08-09-2006, 04:16 AM
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RE: Alternator whine / Ground Loop
Here's some other suggestions.
1. Make sure that both amps have the MINIMUM recommended wire size for both the power and the ground.
2. I would not ground both amps in the same place.
3. The body of the truck is not designed for that much power trying to return to ground. The amps need good grounds to the frame.
3. If any of your signal wires from the hu to the amp(s), run along, or are near any of the vehicles power wires, you will have that whine 4ever.
4.Make sure you are not exceeding the alternators output. Eddy currents form and the excessive heat build up will destroy bearings in a few hours time.
These are just a few pics of how I did my grounds. Each post has 2 grounds. One from the amp, and one from the cap. The pretzel looking pic is the underside of the ground posts. That goes from that post to the frame X2. Spotless connections is CRUCIAL.
It's a tedious process.
Also, if you have amps installed, and have retained any of the factory wiring, I'd be looking as that for a possible cause as well.
http://img143.imageshack.us/my.php?i...scf0541jl1.jpg
http://img204.imageshack.us/my.php?i...scf0542da9.jpg
http://img204.imageshack.us/my.php?i...scf0543hp5.jpg
http://img70.imageshack.us/my.php?image=dscf0553kx1.jpg
Good luck.
1. Make sure that both amps have the MINIMUM recommended wire size for both the power and the ground.
2. I would not ground both amps in the same place.
3. The body of the truck is not designed for that much power trying to return to ground. The amps need good grounds to the frame.
3. If any of your signal wires from the hu to the amp(s), run along, or are near any of the vehicles power wires, you will have that whine 4ever.
4.Make sure you are not exceeding the alternators output. Eddy currents form and the excessive heat build up will destroy bearings in a few hours time.
These are just a few pics of how I did my grounds. Each post has 2 grounds. One from the amp, and one from the cap. The pretzel looking pic is the underside of the ground posts. That goes from that post to the frame X2. Spotless connections is CRUCIAL.
It's a tedious process.
Also, if you have amps installed, and have retained any of the factory wiring, I'd be looking as that for a possible cause as well.
http://img143.imageshack.us/my.php?i...scf0541jl1.jpg
http://img204.imageshack.us/my.php?i...scf0542da9.jpg
http://img204.imageshack.us/my.php?i...scf0543hp5.jpg
http://img70.imageshack.us/my.php?image=dscf0553kx1.jpg
Good luck.
#14
08-09-2006, 08:13 AM
RE: Alternator whine / Ground Loop
ORIGINAL: DieselDemon
1. Make sure that both amps have the MINIMUM recommended wire size for both the power and the ground.
2. I would not ground both amps in the same place.
3. The body of the truck is not designed for that much power trying to return to ground. The amps need good grounds to the frame.
3. If any of your signal wires from the hu to the amp(s), run along, or are near any of the vehicles power wires, you will have that whine 4ever.
4.Make sure you are not exceeding the alternators output. Eddy currents form and the excessive heat build up will destroy bearings in a few hours time.
1. Make sure that both amps have the MINIMUM recommended wire size for both the power and the ground.
2. I would not ground both amps in the same place.
3. The body of the truck is not designed for that much power trying to return to ground. The amps need good grounds to the frame.
3. If any of your signal wires from the hu to the amp(s), run along, or are near any of the vehicles power wires, you will have that whine 4ever.
4.Make sure you are not exceeding the alternators output. Eddy currents form and the excessive heat build up will destroy bearings in a few hours time.
Both are grounded to the same place on the floor, but I can try that thing with grounding them to the frame.
The closest my signal/power wires come together is at the amps, they run on either side of the center hump.
I dont know about the alternators output.
Jeff