Crackling noises from the JSX

budda · 10-27-2007, 07:47 PM

ok so here's the deal: i swapped out the JJ's in the pre for the stock tubes to see which i like more. when i put the stock ones back in, i fired up the amp and there was a weird crackling whenever i wasnt playing. this continued when i turned it off and turned it on again, as well as when the guitar was unplugged. i have no pedals (yet) so that's also ruled out.

i adjusted the bias, and i think it might be that? I put the JJ's back in, and the problem persisted. its not loud, its just very annoying as the amp worked perfectly before. it still plays fine.

any help would be appreciated! i'd rather not take it in, but if i have to i will.

Metal Ken · 10-27-2007, 07:50 PM

Bias doesnt affect the preamp tubes?

Did you try putting the JJ's back in?

mnemonic · 10-27-2007, 08:49 PM

the jsx i tried at guitar center made a pop every once in a while, and when this girl who worked there came over and started talking to me about it, she slapped her hand on the top of the amp and it made a loud pop, she seemed very surprised.

anyway, i dont think i can help, i just thought i'd share that. sounds like something is definitely wrong, are the tubes pushed in there all the way?

budda · 10-27-2007, 08:53 PM

i made sure the tubes were in all the way, yeah.

ken, the JJ's are back in.

10-27-2007, 07:47 PM	#1
budda Guiterrorizer Join Date: Jan 2007 Location: London ONT Posts: 15,484 Thanked: 132	Crackling noises from the JSX ok so here's the deal: i swapped out the JJ's in the pre for the stock tubes to see which i like more. when i put the stock ones back in, i fired up the amp and there was a weird crackling whenever i wasnt playing. this continued when i turned it off and turned it on again, as well as when the guitar was unplugged. i have no pedals (yet) so that's also ruled out. i adjusted the bias, and i think it might be that? I put the JJ's back in, and the problem persisted. its not loud, its just very annoying as the amp worked perfectly before. it still plays fine. any help would be appreciated! i'd rather not take it in, but if i have to i will. __________________ Resident counsellor-in-training, awesome dude, and all around nice guy

10-27-2007, 07:50 PM	#2
Metal Ken Hates the Air • Super Moderator • Join Date: Jun 2004 Location: Florida Posts: 17,673 Thanked: 81	Bias doesnt affect the preamp tubes? Did you try putting the JJ's back in? __________________ Since the Bible and the church are obviously mistaken in telling us where we came from, how can we trust them to tell us where we are going? Didn't you say... Jesus was coming?

10-27-2007, 08:49 PM	#3
mnemonic Custom User Title Join Date: Sep 2006 Location: Stockton, CA Posts: 1,419 Thanked: 10	the jsx i tried at guitar center made a pop every once in a while, and when this girl who worked there came over and started talking to me about it, she slapped her hand on the top of the amp and it made a loud pop, she seemed very surprised. anyway, i dont think i can help, i just thought i'd share that. sounds like something is definitely wrong, are the tubes pushed in there all the way? __________________ http://www.soundclick.com/snowdonia

10-27-2007, 08:53 PM	#4
budda Guiterrorizer Join Date: Jan 2007 Location: London ONT Posts: 15,484 Thanked: 132	i made sure the tubes were in all the way, yeah. ken, the JJ's are back in. __________________ Resident counsellor-in-training, awesome dude, and all around nice guy

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Crackling noises from the JSX