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| Guitar Gear The place to discuss guitars, amps, effects, gear in general. |
April 4th, 2006
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Newcomer
Playing guitar for over a year.
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Join Date: Feb 2006
Last Online: January 24th, 2007 02:22 PM
Location: Canada
Posts: 28
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Amp suddenly started buzzing
My amp (Randall Rx 30w) is three months old and yesterday, it started giving off
this fairly loud continuous buzzing noise. Sure it gave off a hum before but nothing like this. It didn't matter what settings I used, clean, OD, any of the effects, I couldn't seem to get rid of the buzz. Very annoying. 
But after turning it off and putting the guitar away, a few minutes later I plugged in and turned it back on and the buzz is now gone again.
Could this have anything to do with the guitar cord? I almost thought at one point that
moving the cord around had an effect on the buzzing.
I have to ask this dumb question also: Is it normal for movement of the guitar cord
to amplify like when the cord drops to the floor or slides around the floor, should the sound from these cord movements be amplified?? I know mine is.
I'd greatly appreciate any help and have mercy, it's my first amp. 
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April 4th, 2006
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Full Member
Playing guitar for less than a year.
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Join Date: Dec 2005
Last Online: October 30th, 2008 02:30 PM
Location: michigan
Posts: 302
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hi Slim
sounds like maybe a bad cord, but check the jacks on the guitar and the amp also, if one of the jacks are loose then this could also cause problems, if the jack is loose and is spinning around it can short out the wires causing prob, a hum can also be caused by bad filter capacitors in the power supply, if that keeps coming and going after checking the cord and jacks than u might have to have a tech check the amp power supply
chuck
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April 4th, 2006
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Grand Member
Playing guitar for over a year.
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Join Date: Nov 2005
Last Online: January 13th, 2007 04:17 PM
Location: INDIA
Posts: 2,010
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Hi Buddy
I'm feel so sorry for you  Sorry I dont have any idea about this, but I'm sure you'll get good help very soon... Dont feel sad, Pal 
Lots of regards
Kush
P.S : I THINK THIS WOULD GET BETTER RESPONSES IF POSTED IN GUITAR-TECH FORUM. JUST A SUGGESTION
No one can master every aspect of guitar playing, they just get better everyday.
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April 5th, 2006
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Member
Playing guitar for over a year.
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Join Date: Nov 2005
Last Online: July 31st, 2008 05:02 PM
Location: The Netherlands
Posts: 171
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Apart from checking the other suggestions, make sure you're using a GROUNDED socket for your amp's power supply. If you don't, static electricity will steadily build up and when it reaches a critical point it will create a horrible buzz. If that doesn't help, make sure there aren't TOO many devices near which create a strong electromagnetic field (tv, computer etc.) since they will interfere with your signal as well. Hope that helps
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April 6th, 2006
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Newcomer
Playing guitar for what seems like forever.
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Join Date: Nov 2005
Last Online: May 23rd, 2006 11:02 AM
Location: Nashville Indiana
Posts: 2
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Most likely a bad cord or jack somewhere. Do you have a ground switch on the amp? if so flip it
Ever stop to think and forget to start:rolleyes: [COLOR="Blue"][FONT="Book Antiqua"][/FONT][/COLOR]
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April 7th, 2006
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Full Member
Playing guitar for over a year.
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Join Date: Mar 2006
Last Online: May 28th, 2007 12:41 PM
Location: Alba Texas
Posts: 390
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a good sheilded cord should not make noises through amp by dropping a loop or kicking it around on the floor-check the ends and the jacks.
Of All the Things I've Lost it's My Mind I Miss the Most
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May 5th, 2006
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Member
Playing guitar for over a year.
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Join Date: May 2006
Last Online: November 3rd, 2007 04:33 PM
Location: New York
Posts: 54
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Im going to really take the time and agree with people hear, check your cable dude for scratches and such. Seriously half the time its never the amp, its the cable OR maby your guitar jack is loose. Maby the wiring inside your guitar needs to be soddered with a soddering iorn ( NOT A BIG DEAL AT ALL DONT WORRY!) can be done in 5 mins at home if you know what your doing, but if you dont have a pro look at it for 15 bucks or so
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May 5th, 2006
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Full Member
Playing guitar for over 5 years.
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Join Date: Dec 2005
Last Online: 2 Weeks Ago 07:26 AM
Location: South Africa
Posts: 643
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I have a similar problem with my Marshall AVT 50. Two of my friends own the same amps, and one of them have the same problem... It seems that the power supply fan bearing is not AOK... When starting up the amp (sometimes) it gives this horrble buzzing noise. Switch the amp off and on and if you are lucky the noise is gone...
What you should note is that the buzzing we experience is not amplified through the speaker. So if yours is it might not be the same thing.
Check your chord aas everybody suggested, i've seen that people buy expensive guitars, amps and pedals and then they skimp on chords. Your sound can only be reproduced as well as your connections allows it to. A good chord is worth its weight in gold...
Wait a minute it would be made of gold... 
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May 5th, 2006
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Member
Playing guitar for over 10 years.
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Join Date: Apr 2006
Last Online: July 22nd, 2008 05:28 PM
Location: Canada
Posts: 258
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Quote:
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Originally Posted by WernHalen
I have a similar problem with my Marshall AVT 50. Two of my friends own the same amps, and one of them have the same problem... It seems that the power supply fan bearing is not AOK... When starting up the amp (sometimes) it gives this horrble buzzing noise. Switch the amp off and on and if you are lucky the noise is gone...
What you should note is that the buzzing we experience is not amplified through the speaker. So if yours is it might not be the same thing.
Check your chord aas everybody suggested, i've seen that people buy expensive guitars, amps and pedals and then they skimp on chords. Your sound can only be reproduced as well as your connections allows it to. A good chord is worth its weight in gold...
Wait a minute it would be made of gold... |
Replace that fan with a computer power supply fan. They are very reasonable and that will take care of your fan problem. Make sure the fan watts and or voltage match the replacement fan.
"The seeds of our destiny are nurtured by the roots of our past." - Master Po
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May 8th, 2006
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Full Member
Playing guitar for over 5 years.
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Join Date: Dec 2005
Last Online: 2 Weeks Ago 07:26 AM
Location: South Africa
Posts: 643
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I know i should do it Cedric, but I dont get round to it... The fan only does it on occasion and when it does I just switch the amp on and off again, it usually solves the problem...
There's a better way to relax than procrastination... Do the work and dont worry about it again... One of the best lessons i could learn...
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The GfB&B Guitar Slide Rule
Download the PDF of the 'Guitar Chord Slide Rule', print it out, fold it together and you'll have at your disposal a very neat tool that will not only show you all the positions for the main flavors of chords, but will also teach you a very important lesson about how the guitar works... It consists of a folded sleeve and six double sided inserts, instructions for cutting it out and folding it together are included with the PDF ... it's very simple to do, and if you botch it, you can simply print it out again!
Buy it now for only $10 |
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