Jbl e120 buzz

Jbl e120 buzz

Postby jerrys.kids » Tue Aug 07, 2012 10:34 am

I have an e120 that seems to buzz a little in the sustain if I play above the 12th fret? Almost sounds like a snare drum buzz. It is in a blues jr. so it isn't being pushed super hard or anything. There is no rub, and the cone looks fine? Below the 12th it seems fine. Will a cork gasket help? It just has rubber now.
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Re: Jbl e120 buzz

Postby Tennessee Jedi » Tue Aug 07, 2012 11:10 am

jerrys.kids wrote:I have an e120 that seems to buzz a little in the sustain if I play above the 12th fret? Almost sounds like a snare drum buzz. It is in a blues jr. so it isn't being pushed super hard or anything. There is no rub, and the cone looks fine? Below the 12th it seems fine. Will a cork gasket help? It just has rubber now.

Hey man
Maybe your guitar needs a set up ?
Going thru a similar thing myself .....
I had thought I had blown 2 Webers but in fact my guitar just needed a set up and fret level ....
Buzzing has gone away .... I was sure it was the speakers !
:-)
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Re: Jbl e120 buzz

Postby jerrys.kids » Tue Aug 07, 2012 11:39 am

Possible. It doesn't happen with my practice amp though, or at lower volume. I should get a pro setup anyhoo. Didnt even think of the guitar. I will try another guitar. Thanks -Chris
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Re: Jbl e120 buzz

Postby jerrys.kids » Wed Aug 08, 2012 6:37 am

Argh. Tried another guitar and still have some buzz. It seems worse with the reverb turned up. Gonna open this thing up and take a look see.
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Re: Jbl e120 buzz

Postby WildEye » Fri Aug 10, 2012 4:53 pm

I don't know if I'm in the same boat but I'm getting a similar thing but my main problem is it's sounding real muddy...
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Re: Jbl e120 buzz

Postby jerrys.kids » Fri Aug 10, 2012 6:09 pm

doesnt really sound like the same issue. mine is higher on the neck while picking individual notes. sort of a wierd sustain. not clear like lower on the neck, or even at low volumes.
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Re: Jbl e120 buzz

Postby cincinnatiohio » Thu Jan 10, 2013 9:10 am

Hey jerrys kids,

I have the same exact problem going on with a k120. When I play anything above the 12th fret on the g,b or high e especially. I had to disconnect it and am only running with one speaker until I can figure it out.

It's not my guitars. The other k120 I have doesn't do it.

Did you ever find an answer to this problem? Thanks!
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Re: Jbl e120 buzz

Postby jerrys.kids » Thu Jan 10, 2013 11:09 am

I spun the speaker 180 degrees. It's seemed to help. Good luck.
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Re: Jbl e120 buzz

Postby cincinnatiohio » Thu Jan 10, 2013 1:41 pm

jerrys.kids wrote:I spun the speaker 180 degrees. It's seemed to help. Good luck.


call me a fool.. but i don't get it. you spun it around? what do you mean?

i found when i took out the speaker and it had some pressure on the back like when it was sitting on the floor or my lap, it seemed to almost go away, but i can not figure this one out and it is drivin me bananas!

thanks!
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Re: Jbl e120 buzz

Postby Smolder » Thu Jan 10, 2013 1:53 pm

cincinnatiohio wrote:
jerrys.kids wrote:I spun the speaker 180 degrees. It's seemed to help. Good luck.


call me a fool.. but i don't get it. you spun it around? what do you mean?

i found when i took out the speaker and it had some pressure on the back like when it was sitting on the floor or my lap, it seemed to almost go away, but i can not figure this one out and it is drivin me bananas!

thanks!



a buzz is very likely to be dust or something in the groove between the mag and the voice coil. Reorienting it may remove the pressure... or even move it.

There is a guy in california someone referred me to that fixes these issues, I have no experience. If I can find the reference I will pass it along.

Otherwise, the logical long term remedy is a re-cone... dutch at vin-tone or edgewound at upland. I've had great experiences with both.
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Re: Jbl e120 buzz

Postby mijknahs » Thu Jan 10, 2013 3:16 pm

cincinnatiohio wrote:
jerrys.kids wrote:I spun the speaker 180 degrees. It's seemed to help. Good luck.


call me a fool.. but i don't get it. you spun it around? what do you mean?


Rotated the speaker 180 degress in relation to how it was previously mounted in the cabinet.
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Re: Jbl e120 buzz

Postby cincinnatiohio » Fri Jan 11, 2013 12:43 pm

Smolder wrote:Rotated the speaker 180 degress in relation to how it was previously mounted in the cabinet.


i realized the foolishness of my question after i posted it... ha!

i was thinking, why would you face the speaker back into the cabinet... what a dummy i am. anyway- thanks for the feedback! i will have to try rotating along the mounting holes and see if it sits somewhere that clears the issue up. certainly better than replacing.
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Re: Jbl e120 buzz

Postby mijknahs » Fri Jan 11, 2013 12:53 pm

Check out this thread I found today (regarding this same subject):

http://www.tdpri.com/forum/amp-central- ... stcap.html
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Re: Jbl e120 buzz

Postby Smolder » Fri Jan 11, 2013 1:14 pm

mijknahs wrote:Check out this thread I found today (regarding this same subject):

http://www.tdpri.com/forum/amp-central- ... stcap.html



cool find (the thread)... I have one speaker that does buzz on a single note... I might have to try that method.
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Re: Jbl e120 buzz

Postby cincinnatiohio » Mon Jan 14, 2013 7:41 am

Well, I certainly appreciate people coming back to this thread. I think I'm gonna have to have my speaker checked out. The plus I guess is I have two so for now, the twin will be pushing pretty good into one k120. My new mc250 is currently being serviced so I think I'm going to take the speaker to the same guy.

Almost there.... So close but so far...
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