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HAN i need help ASAP!

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Old Apr 27, 2009 | 09:09 AM
  #41  
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Originally Posted by v6_accord_jerz
Thanks but im past the not powering up part.....i got static in the rear speakers that are run by an amp.


yup.
Output level from the deck too high, or gain turned up to high on amplifier? What happens if you swap RCA cables from one to the other? Could the polarity of one of your speakers be backwards? I used to use a 1.5v AA battery and contact the speaker wires. If the cones move outward, the + is on the + side of the battery, then it's correctly in phase.
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Old Apr 27, 2009 | 09:20 AM
  #42  
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Originally Posted by Jafro
Output level from the deck too high, or gain turned up to high on amplifier? What happens if you swap RCA cables from one to the other? Could the polarity of one of your speakers be backwards? I used to use a 1.5v AA battery and contact the speaker wires. If the cones move outward, the + is on the + side of the battery, then it's correctly in phase.
Hmm. Interesting. Never heard that before.
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Old Apr 27, 2009 | 09:45 AM
  #43  
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Originally Posted by MarshyTheKid
Hmm. Interesting. Never heard that before.
Yessir. 1.5v is low enough that you won't fry the coils.
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Old Apr 27, 2009 | 09:53 AM
  #44  
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Originally Posted by Jafro
Output level from the deck too high, or gain turned up to high on amplifier? What happens if you swap RCA cables from one to the other? Could the polarity of one of your speakers be backwards? I used to use a 1.5v AA battery and contact the speaker wires. If the cones move outward, the + is on the + side of the battery, then it's correctly in phase.
I tried all kinds of frequencies from the deck and gain and the only thing that made a difference was the gain but the lower i set it the lower the speakers got to the point where i couldn't hear anything.

I tried the ground loop isolator on the rca cables to the speaker amp and nothing. the constant loud whirling noise that goes up and down the gas is still there. I've been defeated.

A friend of mine teaches mobile electronics and upholstery but won't be able to look at it til friday......so no tunes for the week = fial. :sad:
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Old Apr 27, 2009 | 10:10 AM
  #45  
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Ok...is it static or not? If the noise gets louder when you rev, the wires are picking up noise from the engine or a bad ground. And usually with that, its not a static sound...but an engine whirl sound.

Do you hear it when the engine is off?
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Old Apr 27, 2009 | 10:19 AM
  #46  
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Is your amp mounted to metal? try lifting it up, see if it goes away. If it does, mount it on wood or rubber.

Make sure you ground through the paint wherever your ground wire mounts. So that it's bare metal.

Are you using twisted pair RCA cables or straight?

Are your RCA cables routed through your car in the same location as your power cable? If so, try putting them on the other side.
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Old Apr 27, 2009 | 10:48 AM
  #47  
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Originally Posted by b00gers
Ok...is it static or not? If the noise gets louder when you rev, the wires are picking up noise from the engine or a bad ground. And usually with that, its not a static sound...but an engine whirl sound.

Do you hear it when the engine is off?
i guess you can say a whirling noise, sounds like crappy static noise to me lol. when the engine is off it's still there but ALOT less than when on. when i have the key in ACC. mode its not too bad but with it on i can't hear crap.

Originally Posted by BetterBob
Is your amp mounted to metal? try lifting it up, see if it goes away. If it does, mount it on wood or rubber.

Make sure you ground through the paint wherever your ground wire mounts. So that it's bare metal.

Are you using twisted pair RCA cables or straight?

Are your RCA cables routed through your car in the same location as your power cable? If so, try putting them on the other side.
You know, i tapped into the back seat of the teg and there's metal there. Would that affect the amp??? i remember in my 98 teg my boy mounted it on the back seat too and didn't have this problem.-EDIT i unskrewed it and put a book under it and still did the same thing so that wasn't it. this is the electrical problem from hell.

RCA's are twisted pair

RCA are run on the right side of the teg and the power cable is run through the left.

Last edited by v6_accord_jerz; Apr 27, 2009 at 11:17 AM.
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Old Apr 27, 2009 | 11:31 AM
  #48  
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Okay, with the car off, and the heat/AC fan OFF do you get any noise? It sounds to me like you either have a dirty power source (ideally, all would come from the same circuit and be grounded together), or a cable somewhere with bad shielding. It's normal to pick up RF interference on a car with an antiquated pointed ignition system (like an Integra ). In most cases a ground loop isolator or noise filter can be added to the power supply to reduce it. The best ground is still the battery. Where you have it works fine for most cars.
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Old Apr 27, 2009 | 12:37 PM
  #49  
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What kind of headunit are you running? The interference you're getting could be coming from the deck. the reason you're not getting it through the sub is that the sub's amp has a x-over that cuts off the frequency range of the intereference. I'd pull the headunit and find a better ground location for it. If need be, drill out and tap a new ground to bare (not painted) metal. I'd also find a better grounding point for your amps/cap. Make sure the ground location is not father that 2 feet from the farthest component.


I'm still not clear as to the type of "static" you're having. Is it more of a "whine" than static? If it for sure static like from a tv and it doesnt change pitch ever, it could indicate a faulty connection, most likely your RCA signal.

Try using a different RCA cable (no need to run it through the car - Just for test purposes). All in all I believe it's going to be a ground loop issue and can be remedied by finding better grounds for the headunit, the amps/cap and even underhood for the block/alternator/battery to chassis.
I believe in the integra, there you can just sand down some of the sheet metal under by the rear strut towers and tap a large bolt to it. Perfect ground.
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Old Apr 27, 2009 | 04:26 PM
  #50  
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Re-wired the HU ground and switched RCA's.......still nothing. :shrug:
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