Install Problem / Noise problem...

suleman36 · Post by **suleman36** » Sat Apr 08, 2006 11:29 am

Well ryan, the arc audio 1500-xxk is for my subwoofer. The ppi a600.2 is for my components upfront. ONce the arcamp was powered on the noise was audible at volume 1-5. Both amps have regulated power supplies. PPI from 11-14.4 and the Arc amp from 12.5-14.4

This was done as a sidejob so im not going back to him. Im pissed off as it is. Whats the best way to rewire this.

suleman36 · Post by **suleman36** » Sat Apr 08, 2006 11:32 am

The cap is behind the amp rack. He used 1 ground for both amps and cap i believe.

High Society · Post by **High Society** » Sat Apr 08, 2006 9:03 pm

So...if you unhook the ppi amp, the tweets don't do that correct? In reality you don't need a cap. Try removing it and then wire it up with out it, and see if that helps.

suleman36 · Post by **suleman36** » Sat Apr 08, 2006 9:38 pm

No if i unhook the arc amp, the noise is gone from my components. Its a static channel noise of some sort. Its not very noticable unless but is a bitch if you go down to like volume 1-6. It can be heard behind the music. If the voume is muted, it can still be heard. Once i unhooked the arc amps power, then the noise went away. The arc audio amp is going to be for my subwoofer.

I was thinking of not even using the cap but i figured it couldnt hurt to use it since i had it. I bet its a ground problem. But im not sure if the cap has anything to do with it. The cap is run to my ppi right now and it sounds fine.

High Society · Post by **High Society** » Sat Apr 08, 2006 9:46 pm

So static doesnt go through the sub? If you unhook the ppi, and keep the arc amp on the sub it sounds fine? Or only when they are all hookedup it only happens on your tweets?

suleman36 · Post by **suleman36** » Sun Apr 09, 2006 10:17 am

I dont have the subwoofer yet. Waiting on the ID MAX 12. The sound im getting when the arc amp is hooked up is the sound of home audio when the volume is very high without the music playing or that of a tape deck with the volume up with the tape moving but with no music. Do you get me now ?

The ppi amp is fine by itself but when the arc amp was installed and wired up it started this noise. I went to the trunk of the car and removed the power wire going into the arc amp and the noise went away.

Tommorow i am having this all rewired and im not sure if i should keep the capacitor or not. Just want to know exactly how to wire this the right way professionlly since im taking it to this experienced installer. I just want to know what you guys say.

High Society · Post by **High Society** » Sun Apr 09, 2006 10:45 am

I wouldn't keep the cap. Sell it off and make a lil cash. It might be you're gettin some kind of ground loop from it. Have the shop wire it up from the distroblock, and ditch the cap

suleman36 · Post by **suleman36** » Sun Apr 09, 2006 2:42 pm

Yeah i think im going to just ditch the cap. The power on both amps are regulated anyways. Im having it done monday morning so i will let you guys know how it plays out.

suleman36 · Post by **suleman36** » Wed Apr 12, 2006 6:33 pm

Ok, so i ended up rewiring everything the same way but instead of 8 gauge to the arc audio amp, we used 4 gauge. I stayed with the 1 farad cap and used it as a distribution block again. Once everything was wired up, i turned up the music and this nasty alternator whine was all over. When i pressed the gas it got worse. Im not sure why it did this but before it wasn'nt making any noise with the ppi amp alone and now it was with the ppi amp alone.

So after checking for what it was, the guy figured it out and said it was a ground loop. So he took out the HU and took some speaker wire and hooked it up inside where the rca's connect with the HU preouts for the fronts and grounded it to the metal brackets and all the noise from the alternator whine went away. No it sounds fine with both amps connected after he connected the speaker wire to the rca and preouts.

suleman36 · Post by **suleman36** » Wed Apr 12, 2006 6:35 pm

The only thing i hate is how many wires are behind the amprack hidden from the cap to the ground,amps, etc.... to many wires back there. Im contemplating on just ditching the CAP completely and just using the digital distribution block and running the 1/0 to it and from there running 8 and 4 gauge to the amps and calling it a year since im getting a HO alternator anyways.