Trying to diagnose possible ground problem

[des343 10+ year member]

i have no problems unless i turn my system up so there is a lot of Draw..basically at a certain point the subs will cut out for a couple of seconds and come back on...

im figuring this is a possible ground probem

but could my ground for my 2nd bat cause this problem? my voltages are fine so im assuming its hooked up well enough but could a battery ground cause this? i dont have an IDEAL ground but it is solid i sanded the bed of my blazer real well and BOLTED my ground to it for my battery

i then have my amp grounded to the NEG post of the batt...i think this is my problem ground if i have to guess but ive had it this way for a while no issues thing is i think my wires keep breaking at the EYELID i have 0 gauge ran to the amp and problem i have with these eyelids is that they seem to cut a lot of wires around them making the actual amount of wire directly connected to like probably about a 4 gauge

could this be the problem? i figured that since the power only has a very short 2 or so inches that its like this and travels on less than the 0 it wouldnt be a problem but im beginning to think im wrong??

I know i didnt explain very well i can get a couple of pictures if they will help

Thanks Guys

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[LosIsATool 5,000+ posts]

If the voltage reads good at the amp its not a ground.

 

[des343 10+ year member]

If the voltage reads good at the amp its not a ground.

I haven't tested ON amp yet can a DMM do this? My vehicles meter is what I was going by leading me to think the amps ground is the problem

 

[LosIsATool 5,000+ posts]

I haven't tested ON amp yet can a DMM do this? My vehicles meter is what I was going by leading me to think the amps ground is the problem

Yes just stick the leads in the inputs and watch it as you play it

 

[des343 10+ year member]

Yes just stick the leads in the inputs and watch it as you play it

Okay well I checked them. A tried a song that I knew would cut out the voltages didn't drop much lower than 13 they did a little but the amp went into protect I tried a different song that had deeper bass and voltages dropped to under 12! Not cool but (normally I'd be driving as well still not cool) anyways the amp never went into protect voltages shot back up again until the next bass drop which they again dropped low and still no protect

So why would certain songs cause this? If its not voltage drops?

Thanks a lot for the help!

 

[LosIsATool 5,000+ posts]

Okay well I checked them. A tried a song that I knew would cut out the voltages didn't drop much lower than 13 they did a little but the amp went into protect I tried a different song that had deeper bass and voltages dropped to under 12! Not cool but (normally I'd be driving as well still not cool) anyways the amp never went into protect voltages shot back up again until the next bass drop which they again dropped low and still no protect
So why would certain songs cause this? If its not voltage drops?

Thanks a lot for the help!

Its called imp rise. Different freq raise the ohm load. I dont know why it would protect with more voltage