engine whine and hissing
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=79778
Printed Date: May 17, 2024 at 9:35 AM
Topic: engine whine and hissing
Posted By: 1stclasso
Subject: engine whine and hissing
Date Posted: June 30, 2006 at 12:31 AM
ok, i know this has been posted many times in the this forum, but as we all know every situation is different, and i have narrow it down, but still cant knock it out! the whine is low but the hissing noise is high it was a up graded system, did touch the amp for the highs but after we changed the sub amp and the speakers for the highs, the whine began coming from the highs, we replaced the battery , disconnected the sub amp, cleaned the grounds, switch the high amp. when i unplug the rca's from the amp the whine stops, when we unplug the rca's from the head unit it stops, but only when no rca's are connected! the head unit is a Kenwood DDX-7017 double din! what else should i try . or what could it be! -------------
Replies:
Posted By: forbidden
Date Posted: June 30, 2006 at 12:53 AM
More info. What is the vehicle and balance of the gear. Where is the ground point, what guage wire etc. If your going to tell a story, we need the middle chapters.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: 1stclasso
Date Posted: June 30, 2006 at 1:09 AM
sorry that made a long day for me! im alittle brain dead! lol its a 2001 buick park ave. 4 gauge from the battery to the dist block then 8 gauge to the hist amp, which is a dual 240 (shrug, his stuff) all stinger pro series wires. concept 5.25, concept 3.5, Mb quart dicuss 6x9! ground point is the a sanded down bare surface 11 inchs in length, from the frame in the truck, also all the grounds are the same as the power wires! and there is a 4 gauge ground on the frame underneth the hood goin to the battery! -------------
Posted By: aznboi3644
Date Posted: June 30, 2006 at 1:30 AM
Try moving rca cable to opposite side of power wires if it isnt already?
Posted By: 1stclasso
Date Posted: June 30, 2006 at 1:35 AM
yea it is already on the opposite side! -------------
Posted By: spookiestylez
Date Posted: June 30, 2006 at 1:51 AM
tried a new set of rcs cables? ------------- RTFM
Posted By: 1stclasso
Date Posted: June 30, 2006 at 7:54 AM
yea, i tried running a new set from the front to the back without goin underneth the carpet
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Posted By: geepherder
Date Posted: June 30, 2006 at 8:27 AM
Try grounding the rca outer shields at both the deck and the amp. You can even link them both to the amp ground(s) if you like.
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My ex once told me I have a perfect face for radio.
Posted By: 1stclasso
Date Posted: June 30, 2006 at 9:00 AM
it worked when i grounded just one side of it at the HU. what caused that? and the high amp was was turning off when i connected the sub amp! could that had been the problem? -------------
Posted By: electrostatic
Date Posted: June 30, 2006 at 4:52 PM
the shield ground wire limits the voltage of the shield to ground. by limiting this voltage you reduce shield noise current.
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Prove your connections, use a meter!
I promise, I'll behave!
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