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GHC58 buzzing subwoofer

I have a GHC58 Goodmans subwoofer, When i switch it on it builds up a buzzing noise which continues to get louder until i have to switch it off due to how loud it is.

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Contact goodmans and keep pestering them til they replace it like i did rich

Posted on Dec 10, 2008

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PROBLEM WITH SUB WORKING ON A PIONEER VSXAX5I RECIEVER


The problem is in the powered sub, the buzzing sound is caused by one or more defective audio output ic's that drive the subwoofer directly, service is the only option to remedy the situation.

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I had the same problem. I was told by a sales guy at a high end audio store that I should try using a 3-Prong To 2-Prong Adapter. I went and bought one. I plugged it in and no more buzzing.

you can find them at HomeDepot, Lowes or dollor store.11_25_2012_6_28_23_pm.jpg

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I have a Boston Acoustics VR-500 Subwoofer with a problem. As soon as anything is plugged into the line level RCA jacks, the subwoofer produces a loud buzz/hum. I have tried connecting it to the subwoofer...


I'm thinking you have an open shield ground on the RCA input side. Connecting speaker inputs possibly restores the ground. Try connecting the high level inputs then disconnect the remote end of the cables (floating the grounds).

Then get out an ohmmeter and find that open circuitor or bad solder joint between RCA ground and real ground in the speaker's amplifier. Or.... if speaker ground kills the hum and you want to use RCA Line Level input to the sub, just connect one minus speaker output on your source amp to one minus on the sub's amp.

Mar 01, 2011 | Audio & Video Receivers

1 Answer

Is this the same Goodmans that made the Axiom 80 speakers back i the 1960s?


Hello.
It is and it isn't. I don't know what Item or era you are comparing the Axiom 80s too, but on the information given I can tell you that in the 60s Goodmans made high quality items and they were Made In England. Up until around the late 80s early 90s, the english factories closed and Goodmans items are now made abroad in either china or japan and IMO do lack their original build quality, much like Wharfedale.
I hope this answers your question

Jan 13, 2011 | Audio & Video Receivers

1 Answer

Excessive noise in my speakers


usually, it is background noise. Scratchy background noise. Gets worse the louder I turn up the volume. I ran a test on all the channels and it seemed to be the subwoofer channel. I've unpluged the subwoofer but that didn't help. I have also noticed that my receiver doesn't turn up nearly as loud as it used. I usually watch DVDs at a volume level of about 15 on my Denon and that's quite loud. But now, 15 isn't that loud at all. I went to Best Buy where I bought all of this equipment and they immediatly told me it was suge protector issue and wanted to sell me a high-end surge protector. Perhaps they are right but not sure why it began rather suddenly. Probably not helping you much.

Apr 07, 2010 | Denon AVR-2805 Receiver

1 Answer

Subwoofer problem


If you get your system up and running and hear an audible buzz or hum, the first culprit to look at is either the powered subwoofer or your reciever feed at the entry point to your system.



Dec 23, 2009 | JVC RX-6018V Receiver

1 Answer

Sub woofer on my goodmans ghc58 is not working but the rest of speakers are, please help


make sure your dvd player is connected to the subwoofer input on the back of the unit, and make sure 5.1 channel is selected on the receiver. Also, try turning up your subwoofer with the controller

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It works fine for a couple of minutes the starts to hum. If you turn up the volume it masks the noise but is till audible, also the video switching cuts out. after examining the components I have seen some heat discoloration in the power suply area and believe it to be power for the video board. disconecting the ribbon cable form the video board the hum goes away, and so does any video wich does'nt matter for me because my monitor1.gif does all the HD video1.gif switching. hope this may help with some noise problems.

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sounds like a capacitor is taking a long time to do it's job. You might want to see how much it would cost to repair.

Jan 13, 2008 | Audio & Video Receivers

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Try to see if the reciever will make the buzzing/noise without anything connected to it except power, and speakers. Tune into a local radio station and see if the noise continues. If the noise has stopped, then you know there is an issue with the player or cable.

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