Wire routing / noise issue?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=57984
Printed Date: May 16, 2024 at 10:25 PM

Topic: Wire routing / noise issue?

Posted By: swede
Subject: Wire routing / noise issue?
Date Posted: June 18, 2005 at 2:10 PM

I'm in the process of running all new wiring throughout my car for this system. Its a wagon and the amps are mounted in the far back corner walls. I'm running the power lines and remote turn-ons down the driver's side, as thats the side my battery is on; all patch cables down the passenger side.

Now, will noise resonate into 14ga. speaker wires? Obviously I have a front and rear driver's side doors that will have to be run, so somewhere along the lines those and the power cables are going to cross paths. If so, there may be a Plan B, but I'm curious none the less.

One of those things I didn't think of til I got there. posted_image

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Subtlety is EVERYTHING.

Replies:

Posted By: 91rsliberty
Date Posted: June 18, 2005 at 7:28 PM

Just make sure the cables you are using are street wires zn3 or zn6 series cables (doesnt have to be streetwires but they seem to make the best cables, just make sure they are a twisted pair cable this is your best bet against noise)

they also make a twisted pair speaker wire, not cheap but very good.. see how you go with the speaker wires you have , but most of your noise is induced between the head unit and amp (as it gets amplified and then you can hear it ) cables will have to cross or get close at one point or another just try to minimise it i guess

see how you go ..

Posted By: stevdart
Date Posted: June 19, 2005 at 4:58 PM

Signal wires (pre-amplification) that run parallel with power wires are apt to pick up interference which then becomes amplified, but crossing perpendicularly should not cause a problem. Speaker wires, on the other hand, should be fine to run any which way, because they are after the amplification stage.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Posted By: swede
Date Posted: June 19, 2005 at 5:51 PM

Thanks stevdart - thats makes sense.

I didn't think about the pre and post amplification stages, but crossing perpendicularly did.

Thanks again.

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Subtlety is EVERYTHING.