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Title: Marshall Half-Stack Question Post by: VolcomStone on July 19, 2005, 06:24:21 PM I have a Marshall JCM 2000 DSL head and 1960A cabinet. For a while I've been noticing strange feedback noise whenever I crank the volume. This usually happens when I turn the ultra lead volume up past 2 or 3. It's a loud, steady squeal or whine and sounds different from normal feedback caused by the guitar. I'm 99% certain something's wrong with the amp, but I was wondering if any of you have any ideas before I open it up.
Title: Re: Marshall Half-Stack Question Post by: MeanBone on July 19, 2005, 06:40:39 PM may be the guitar pickups. wich guitar is it? if it's a cheap guitar or an epiphone it's problaby the pickups. bad guitar pickups will squeal like a dog in heat when the volume or gain is cranked up.
u can always get a noise gate. but if it's because of the guitar change the PU's for Dimarzio, Seymour Duncan or EMG. these 3 usually rock. my fav are Di Marzio and EMG for heavier sounds like Zakk Wylde. Title: Re: Marshall Half-Stack Question Post by: VolcomStone on July 19, 2005, 07:28:54 PM Nah, I'm certain it's not the guitar. It's a Gibson Les Paul Studio, and even though I should replace the pickups soon I'm sure it's not that. It's not your normal feedback you get from the guitar, it's definitely something in the amp. It's just a loud, unchanging, high-pitched whine.
Title: Re: Marshall Half-Stack Question Post by: AdZ on July 19, 2005, 08:04:37 PM Going through any pedals?
Title: Re: Marshall Half-Stack Question Post by: VolcomStone on July 19, 2005, 10:26:38 PM nope
Title: Re: Marshall Half-Stack Question Post by: Genesis on July 20, 2005, 10:41:55 AM Probably ur tubes need changing... They give off a whine when they are abt to go bust....
Title: Re: Marshall Half-Stack Question Post by: VolcomStone on July 20, 2005, 11:37:39 AM yeah, i figured it had something to do with that. how much does that usually cost to get them changed?
Title: Re: Marshall Half-Stack Question Post by: Genesis on July 20, 2005, 02:05:34 PM SED: http://www.thetubestore.com/svetlana.html
JJ/Eurotubes: Send a mail to Bob, eurotubes@cnnw.net and he'll tell u what u need and how much it'll cost... : ok: Title: Re: Marshall Half-Stack Question Post by: Aero on July 21, 2005, 02:01:15 PM I had a marshall who got broken because of anormal voltage values... the volume pot started makin UGLY noise :-\
Title: Re: Marshall Half-Stack Question Post by: Johnny Rattlesnake on November 21, 2005, 02:43:18 PM You could have a bad cable. Simple but worth checking. Maybe the amp isn't grounded properly. How close is the amp to other electical appliances?
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