making a ground

[king ranch 5,000+ posts]

idk what else to do unless its my loc causing the problem i might try hooking the rcas to the HU

 

[Hintzyboy 5,000+ posts]

Do that, and re-ground the HU to the chassis. Ground should be labled on the wiring harness

 

[king ranch 5,000+ posts]

only thing with my HU pre outs is i have to crank my gains up bc the preout volts are really low

 

[bass-aholic 10+ year member]

see what i meant when i said welcome to hell

ground loops ftmfl yo

 

[king ranch 5,000+ posts]

this blows man well only thing i can do is once i have all my equipment done and my big 3 done try to find the problem

how well do ground loop isolators work

 

[Hintzyboy 5,000+ posts]

only thing with my HU pre outs is i have to crank my gains up bc the preout volts are really low

As long as you don't have to crank it to a point that causes distortion or clipping, it doesn't matter. What does your HU have for preout voltage?

If it really is a problem, the solution is a line driver or new HU, not a LOC.

 

[BEAVER.989 10+ year member]

only thing with my HU pre outs is i have to crank my gains up bc the preout volts are really low

This is not a big deal. The Xenon amps I use are known to require very high gains and mine are no exception. The gains for my mids and sub are just about maxed... with no problems.

 

[king ranch 5,000+ posts]

yea but the higher the gains the more heat and stress it causes on the amp correct

 

[bass-aholic 10+ year member]

this blows man well only thing i can do is once i have all my equipment done and my big 3 done try to find the problem
how well do ground loop isolators work

DEY DONT YO!!!!

 

[king ranch 5,000+ posts]

mutha****a

**** this really does **** well first thing i am gonna try is some knu krystal rcas but that will be after i get my kick panels and another set of comps to keep up with the bass since the noise isnt even noticeable once the music is even playing

 

[BEAVER.989 10+ year member]

yea but the higher the gains the more heat and stress it causes on the amp correct

Not if the reason they are set higher is because of low input voltage.

Your idea is true if you were to just turn the gains up while being connected to the same source, but in this instance we're turning them up to compensate for an inferior source... and only to a level equal to where they would have been when set lower with a superior source.

 

[Hintzyboy 5,000+ posts]

Just connect the RCAs to the HU and reground to see if it fixes the issue. No sense in spending extra money if you don't need to

 

[king ranch 5,000+ posts]

will do should i try to ground my rcas on the HU if i do that for wire i can just use like speaker wire or something right

also how do i test my pre out voltage

 

[Hintzyboy 5,000+ posts]

will do should i try to ground my rcas on the HU if i do that for wire i can just use like speaker wire or something right
also how do i test my pre out voltage

Never seen someone actually ground the RCAs. As for grounding the HU, yeah you can just use a good thick speaker wire.

For preout voltage, you can either try to find it in the manual or on JVCs site, or you can use a DMM to measure it. Just use the same volume you use to set your gains.

 

[mokedaddy 5,000+ posts]

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