Static noise coming from front and rear speakers.

[Timbo42k10]

---I'm getting this static sound coming from my front and rear speakers. You can barely hear it with the inputs to their respect amps at 0 and HU volume turned all the way up, but as you increase the input and max it out, it's pretty loud as you increase the HU volume.

---I've got a 0 gauge wire running to the back power distrubtion block with (3) 8 gauge wires out the other end going to my seperate amps. I have 3 street wires zero noise rca, which I ran all the way back to the head unit and draped it over the top of the seats to insure they weren't the issue. Everything is grounded under 18" of ground wire length; the 2 front and rear speaker amps are grounded under the same bolt and the capacitor to sub amp ground is about 2" away from the other ground. The ground are located on the chassis of the car between the trunk and rear seat hatch area.

---The static noise is loud on FM frequencies and with audio going through, the music is greatly distorted at high volumes whereas on CD the static is there, but about 70% less and I can nearly max out my inputs and have it crystal clear BUT I mean the static IS still there, toleratable though.

---Anyone have some input on this? I had just made this account because of this issue but look forward to posting more on here and hope someone has some advice! My detailed audio info is on my signature. Thanks in advance!

Click to read more...

 

[Chuck Manfre 10+ year member]

I have the same problem, try a Ground Loop Isolator

 

[nateberrier 10+ year member]

I have the same problem, try a Ground Loop Isolator

This is a bandaid.

Having grounds in different locations can cause static or whine because they are not at the same impedance.(ground loop) Make sure that you have sanded all of your chassis connections down well, I would go back through them. You should also look into doing the big three. That is chassis to battery (neg), engine block to chassis (or battery) (neg) and battery positive to alternator. upgrading these wires with 1/0 and sanding the connections at the same time usually helps and allows a little more juice to flow to the amps. Back on the main route though, make sure your head unit is grounded to the chassis and sanded well rather than through the harness, this will help sometimes.

If all of your connections are well grounded then it may very well be your amps, Boss is known for their crappy quality. You get what you pay for. Also the gains are not volume knobs. Do not turn them up as such.

 

[kramer_212 10+ year member]

I have the same problem, try a Ground Loop Isolator

check the resistance on your grounds first with a muiltimeter , and double check to make sure that they are proper.

 

[Timbo42k10]

Thanks for the responses. I have upgraded my big 3 wires and will double check the HU ground though I've checked it a few times already. Far as the amps go, if it is the quality of them that are causing the issue, then I will pay more for better ones; however, I hope not to get some expensive amps and still have the issue. I will also try putting all 3 amp grounds under the same bolts, rather than the capacitor to sub amp ground under one and the 2 front and rear amps under the another.