Buzzing sound
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Buzzing sound
So I'm in the middle of sound deadening and new stereo system install. I have Polk Audio 6.5" MM6502 components in the front ran to a Pioneer Amp. I get a light buzzing or hissing sound coming out of them. You really can only hear it when the sound is turned down relatively low. Its not awful but I can hear it and it's now became somewhat annoying to me. Any thoughts? I've checked grounds, etc. Speakers sound amazing turned up...
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Thanks for the reply. I'm not sure about what this ground loop isolator is. I've researched and seen them but essentially do you just plug your RCA cables into this and then connect the other end into your amp? Whats it do? Thank you!
Melting Slicks
Joined: Oct 2004
Posts: 2,863
Likes: 150
From: Woodland CA
A ground loop isolator helps suppress the “noise” caused by either a bad ground or poorly shielded wires. Basically electrical interference noise is being pick up by the RCA cables and then amplified by your amp. One way to reduce this is to install “power” wires separate from “signal” wires. For ease of installation, most installers just run all the cables down the same path which does increase the likelihood of getting the “buzzing” sound, especially if using cheap wires. But installers know that if this happens, just throw on some ground loop isolators and the noise is gone (or low enough that you can’t hear it). It is a cheap and easy fix.
To install, just plug you RCA’s into the ground loop isolator and then it to the amp.
To install, just plug you RCA’s into the ground loop isolator and then it to the amp.
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
A ground loop isolator helps suppress the “noise” caused by either a bad ground or poorly shielded wires. Basically electrical interference noise is being pick up by the RCA cables and then amplified by your amp. One way to reduce this is to install “power” wires separate from “signal” wires. For ease of installation, most installers just run all the cables down the same path which does increase the likelihood of getting the “buzzing” sound, especially if using cheap wires. But installers know that if this happens, just throw on some ground loop isolators and the noise is gone (or low enough that you can’t hear it). It is a cheap and easy fix.
To install, just plug you RCA’s into the ground loop isolator and then it to the amp.
To install, just plug you RCA’s into the ground loop isolator and then it to the amp.
Perfect! I will give this a shot. Thank you very much!
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
Unlikely to be related but I'll just throw this out there.
I just installed a new head unit (Pioneer AVH-X491BHS) and upon initial power up I was getting a very faint white noise coming from the driver door panel speaker. I removed the HU and re-connected that set of speaker wires. The noise went away, however shortly afterward that speaker started having dropouts and clipping and all kinds of issues. Turned out to be a bad board in the HU. Got a replacement unit installed last night and so far all is good.
Good luck troubleshooting!
I just installed a new head unit (Pioneer AVH-X491BHS) and upon initial power up I was getting a very faint white noise coming from the driver door panel speaker. I removed the HU and re-connected that set of speaker wires. The noise went away, however shortly afterward that speaker started having dropouts and clipping and all kinds of issues. Turned out to be a bad board in the HU. Got a replacement unit installed last night and so far all is good.
Good luck troubleshooting!
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Unlikely to be related but I'll just throw this out there.
I just installed a new head unit (Pioneer AVH-X491BHS) and upon initial power up I was getting a very faint white noise coming from the driver door panel speaker. I removed the HU and re-connected that set of speaker wires. The noise went away, however shortly afterward that speaker started having dropouts and clipping and all kinds of issues. Turned out to be a bad board in the HU. Got a replacement unit installed last night and so far all is good.
Good luck troubleshooting!
I just installed a new head unit (Pioneer AVH-X491BHS) and upon initial power up I was getting a very faint white noise coming from the driver door panel speaker. I removed the HU and re-connected that set of speaker wires. The noise went away, however shortly afterward that speaker started having dropouts and clipping and all kinds of issues. Turned out to be a bad board in the HU. Got a replacement unit installed last night and so far all is good.
Good luck troubleshooting!
Thank you. Mine is a Kenwood model DDX9703S. Hoping thats not the problem. I've ordered a Ground Loop Isolator. Fingers crossed that fixes the issue.
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