Question about Marshall Amplification Marshall MS-2 Mini Amp

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Sound fades. Clean channel has some overdrive in it at all volumes. After 10 minutes, sound starts fading, both clean and overdrive, and keeps doing so. I suppose it's an overheating thing. Any suggestions? And please don't say use fan, because in the MS-2 there's barely room for the existing components, as it is.

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Jumper the power amp in jack to the preamp out jack [or effects send jack to the effects return jack]. There may only be oxidation in the contacts of these jacks. If the normal sound level comes back-either clean the two jacks or have them replaced.

Posted on Nov 23, 2014

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Did you try a new 9 volt battery?

Posted on Jun 22, 2014

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Fred Yearian

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SOURCE: Marshall DSL 100 - volume fades away and gradually comes back on

IF this is a vacuum tube unit, these symptoms are that of a tube that the heater is intermittent, that is it cools off due to a break and then liights again.

Open the back and observe the heaters in the tubes. DO NOT be fooled by some that have TWO heaters in them. (use a mirror if necessary) A single one that comes and goes can cause the problem and the voiration can make it come and go. This behavior in a tube is NOT somthing readily spotted in a tube checker. The delay in fading and coming back would be the delay in warm up following a heater going out and cooling.

Posted on Feb 15, 2010

pastorchad

  • 3 Answers

SOURCE: Marshall MG250dfx's sound fades out

I have read that the problem is in the FX send/return jacks which oxidize if not used much. All you have to do, apparently, is ram a jack plug in and out a bunch of times. This breaks up the oxidation, and allows the amp to work properly again.

Posted on Jun 23, 2010

matt

  • 22 Answers

SOURCE: Hi, my name's John...i have

It sounds like you bought a defected amp. You should contact Marshall and tell them the problem. You should have some kind of warranty.

Posted on Apr 04, 2011

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