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Old July 3rd, 2003, 11:47 AM   #1
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engine noise through amped 6x9s

i just hooked my 6x9s up to my amp and i have engine noise coming through them now. When i disconnect the rca's from the head unit the noise is still there, when i disconnect the rca's from the amp it is gone so it seems to be the rca...power and ground are on the driver side. remote and all my rca's are on the passenger side. could it be the remote wire messing stuff up?
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Old July 3rd, 2003, 12:54 PM   #2
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Re: engine noise through amped 6x9s

Quote:
Originally posted by accord126 on July 3rd, 2003 at 06:47 PM

i just hooked my 6x9s up to my amp and i have engine noise coming through them now. When i disconnect the rca's from the head unit the noise is still there, when i disconnect the rca's from the amp it is gone so it seems to be the rca...power and ground are on the driver side. remote and all my rca's are on the passenger side. could it be the remote wire messing stuff up?
yeah, power wires should never be on the same side as signal wires. Just re run the remote or get a filter. But if its really bad the filter wont help.
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Old July 3rd, 2003, 01:00 PM   #3
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so, since the remote wire carries power (right?), it shouldnt be on the same side as the RCA's?
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Old July 3rd, 2003, 01:02 PM   #4
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cuz i got a slight buzz in the right speaker, in my kickpanel. left one is fine. i ran the remote wire with the rca's and speaker cables
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Old July 3rd, 2003, 01:03 PM   #5
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Nikerey- what kinda filter can help me out? link?
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Old July 3rd, 2003, 07:41 PM   #6
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Yeah!! I wanna know too. I have the exact same problem.
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Old July 4th, 2003, 01:33 PM   #7
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Quote:
Originally posted by loxllxol on July 4th, 2003 at 02:41 AM

Yeah!! I wanna know too. I have the exact same problem.
ok well i talked to Loulax07 on aim but the basic problem he has is that a power wire (remote) is running next to signal wires (RCA). If he puts the remote down the left side with the other power wires it should fix the problem....or there are filters you can get from audio shops that work too, but moving the wire should fix the problem.
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Old July 4th, 2003, 02:21 PM   #8
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try a new ground for the amp.

shorten the ground wire and make sure u connect it to a good ground. I'd strip away the paint from the metal with like a dremel and then use that. Also if u have more than one amp, use different grounds for them.
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Old July 4th, 2003, 02:23 PM   #9
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btw if u have a ground loop, moving the rca and power wont do anything.

if u talk to most car audio professionals they will tell you that it doesnt matter where u run the power and rca.
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Old July 4th, 2003, 04:01 PM   #10
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like posted above..move your remote wire, also do a new possibly better ground. Other things to try/check..ground on the headunit,is the amp mounted to metal? If so unmount it. Check the quality of the RCAs, as well as any tension on them. They should be mildly loose with little or no tension.

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Old July 5th, 2003, 10:49 AM   #11
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Quote:
Originally posted by frank828 on July 4th, 2003 at 09:23 PM

btw if u have a ground loop, moving the rca and power wont do anything.

if u talk to most car audio professionals they will tell you that it doesnt matter where u run the power and rca.

thats not true, it does matter where the power and RCA.....every system ive ever owned was run on opposite sides and everyone ive seen installed has been run on opposite sides.
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Old July 5th, 2003, 11:06 AM   #12
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I had that same exact problem. The filter is call a "Ground Loop Isolator" and it should cost around $10-$15.
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Old July 6th, 2003, 10:48 PM   #13
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true, well i re-ran the remote wire to the other side of the car and everything is perfect now...thanks for the help everyone...remote should not go with RCAs everyone. if you have rca's w/ remote rewire the remote and you will be fine. it worked for me.
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Old July 7th, 2003, 11:08 AM   #14
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i may try to relocate the remote wire 2day
i'll let u know how it works
weird thing is, even when i unplug the rca's and the pwr/gnd from the amp, the noise is still there when the engine is started..... so, it may make sense that the only wires still hooked up when the noise is present are the speaker and remote wires.....
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Old July 7th, 2003, 12:04 PM   #15
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Quote:
Originally posted by Loulax07 on July 7th, 2003 at 06:08 PM

i may try to relocate the remote wire 2day
i'll let u know how it works
weird thing is, even when i unplug the rca's and the pwr/gnd from the amp, the noise is still there when the engine is started..... so, it may make sense that the only wires still hooked up when the noise is present are the speaker and remote wires.....
I suspect it's the remote wire picking up some noise, but I highly suspect (if you have component speaker set) that the crossovers..which have sensitice inductors are picking up some noise via a nearby electrical wire. Try moving your crossovers somewhere else and that should solve your problem if it was originally caused by the remote wire.

Remember to have speaker wires coiled with each other as you run them.. even if you dont it shouldnt matter.. speaker wire can be run next to the power wires with no ill effects... but coiling speaker wire can further help with noise rejection inherent in some low grade wire.
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Old July 7th, 2003, 12:18 PM   #16
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i really dont know
i have speaker wires that are coiled in its jacket.
and i dont know about movin the xovers, i got em in the glovebox
****
i am gonna try the remote and a better ground
i really HOPE it aint the x-overs
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Old July 7th, 2003, 12:19 PM   #17
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if i get ground loop isolators, would that fix the possible noise within the x-overs?
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Old July 7th, 2003, 02:43 PM   #18
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Quote:
Originally posted by Loulax07 on July 7th, 2003 at 07:19 PM

if i get ground loop isolators, would that fix the possible noise within the x-overs?
I have mine also in my glove box , hopefully this noise is not being picked by your crossovers. NO, ground loop isolaters, do just that break the minimum voltage created between two different ground points, but this has to be between the HU/amp, HU/EQ, or EQ/amp. Ground loop isolater work(most of the time) to reduce noise when sound system is on thorough the RCA cables. But your noise is there even if you have your radio turned off... the only thing that picks up noise AFTER an amp(turned off) are crossovers...sorry to say ...
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Old July 7th, 2003, 03:30 PM   #19
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****..... can i put some sort of shield or something somewhere?
will creating a better ground help anything?
argh, i'm gonna disconnect the rca's, pwr, remote, and spkr cables at the amp, turn the HU off, and then see if its there.
if it is, i guess that leaves the x-overs, right? see, i asked a mod over at caraudioforum and he doubts its the x-overs, i dont know.....
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Old June 28th, 2004, 10:24 PM   #20
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mine just makes the noise when my radio is on but it lessens as I lessen the gain but isn't the purpse of theamp so that I can have the gain to push more power to the speakers? also it seams that one of my rear speakers soudns real low when i connect one of the RCAs but the other sounds a little louder could this be a problem within my rcas?
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Old June 29th, 2004, 09:33 AM   #21
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don't run your power or your remote wire on the same side of the car as the RCAs....if either of them are on the same side, you will have a problem

talk about bringing back an old/dead thread
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Old June 29th, 2004, 11:41 AM   #22
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i have my remote and RCA's on the same side, doesnt cause a problem.
but yes, it is good practice to run the 12V on one side.......
really, the remote wire wont cause any problems
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Old June 29th, 2004, 05:06 PM   #23
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after i posted this, i moved the remote wire to the other side and the noise stopped. Remote wire made a difference for me on the mids and highs but didn't have any effect on the subwoofers. I didn't notice the problem til I amped the mids and highs.
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Old July 20th, 2004, 06:22 PM   #24
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getting rid of noise

EASY FIX:

you need to run your RED POWER WIRE and BLUE REMOTE TURN ON WIRE on the opposite side of the car from the RCA WIRES all the way from behind the cd player to the amp, thats why on most all amps the RCA's plug in on the opposite side from the power, ground, and remote wires.
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Old July 20th, 2004, 06:26 PM   #25
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yeah, this post was created on July 3rd, 2003, 01:47 PM...heh...I figured it out long ago =)
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