Finding a better Speaker Amp Ground - noise floor

[WhineyTTwins]

For those of you running high power amps to your front stage, have you found a decent grounding option? Cannot get rid of this damn noise floor on my ARC Audio 1200.6. I've gone through 2 amps and that noise floor will not go away. A member from another forum concluded that the Alpine PDX amps are the only ones without the noise and believes our alternator and it's corresponding ground may be the culprit. The seat bolt is not a good ground as that is layered metal and resistance is still there. The metal bracket behind rear seats and under the rear window has not proved to be a viable option either. There is a ground for the window defrost there but I have not tried that as it is too small. My next option is to either try a ground through the rear floor of the truck or do a dual battery setup and run a 00 gauge all the way to the batteries but I'm interested in seeing whether someone has had success with either of those two future solutions. 

 

This questions pertains to people with high powered amps or those with tweeters that can audibly hear the noise floor. ARC amps are not known for noise floor so it is not the amp to a certain extent. Wondering if ground the truck better, such as the big 3 upgrade, will help. Hopefully someone knows the grounding points to chime in a bit. 

[Maxsuperdog]

I used the rear seatbelt bolt. 0 gauge wire. JL HD amps running active. Mine is dead quiet.

[clayp]

when I added a soundstream amp, the amp instructions suggested tying the amp ground into the headunit ground. I did and experienced no noise

[WhineyTTwins]

Into the headunit ground? Isn't that only an 18 gauge wire? I'm running 2 gauge grounds for each amp and running a wire back up to the headunit seems like it will pick up a lot of noise. May run a 00 under the truck to the battery but idk yet

 

[WhineyTTwins]

On 10/24/2017 at 5:18 PM, Maxsuperdog said:

I used the rear seatbelt bolt. 0 gauge wire. JL HD amps running active. Mine is dead quiet.

Man, I wish. I don't know where to look anymore. I've been dealing with for so long that now since I acknowledged it, I really want to get rid of that noise floor.