Grounding points // Voltage Drops...

**Toofastgs** · 09-05-2008

You guys with multi amp set ups. Where is your earth ground at?

Mine is on the inner spare tire well. Cleaned with a air grinder with steel brush. 4AWG to a ground Distribution block less then 2' away.

Right now for some reason im losing voltage to my amps.
Alt i am seeing 14.3-14.4 Volts
Batt im seeing 14.2-14.3
ANL Fuse holder W/display 13.9-14.1 even on output with DMM
Cap input 13.9-14.00
Power block 12.5
Power at amps 10.9-11.3

I know this has to do with grounding. Any help? Any better grounding points in trunk?

**BADAZGTP** · 09-05-2008

I ground mine on the passenger side strut tower, but side shouldn't matter. What size are the amps and what guage power and ground wire are you using?

**JCG's-GTP** · 09-05-2008

What kinda wire are you using and is it all the same from battery to amp? Reason I ask is some cheap 4ga has the diameter of 4ga but inside the jacket the wire is about 8ga. Either way mine is grounded to strut tower

**offroadfury6** · 09-08-2008

i folded down my seats and took out a bolt that holds the frame...granded it on there but I gotta self-tap me a screw on the top of the metal in my trunk...i dont like where it's grounded at now, scared it'll come loose...

**gtpinsc** · 09-08-2008

Originally Posted by BADAZGTP

I ground mine on the passenger side strut tower, but side shouldn't matter. What size are the amps and what guage power and ground wire are you using?

me too...never had power loss or feedback problem... 4 gauge stinger wires

**BADAZGTP** · 09-08-2008

Yea, the only problem I am having is the dimming lights. Gotta get me a cap. Pushing 2300 watts doesn't help.

**gtpinsc** · 09-08-2008

Originally Posted by BADAZGTP

Yea, the only problem I am having is the dimming lights. Gotta get me a cap. Pushing 2300 watts doesn't help.

ur gonna b deaf one day

...800 watts total is enuff for me

**BADAZGTP** · 09-08-2008

What? I have a 800 on my mids and highs and a 1500 on the two 12" subs. Used to run about 3500 watts and 3 15's in her a couple years back.

**gtpinsc** · 09-08-2008

yep and ill b able to hear when im 60

i got a 500 watt memphis class d on my 2 10's (digital dynamics) and 300 watt memphis on hi's mid's that hurts my ears at times.

**VinnieGTP** · 09-08-2008

It sounds like you bought "tinned" wire. Cheap wire is covered in tin to get larger gauge out of less copper.

1/0ga from battery to the distro block FTW!

**JCG's-GTP** · 09-09-2008

I agree with Vinnie

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