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Marshall mg 50 dfx amp sounds muffled?

I have the exact same amp as my girlfriend and it sounds fine, but hers no matter what adjustments to the knobs it still sounds like it's under water. Any way to solve please?

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Turn off the effects or go inside and unplug the little sound card. It is only a few samples of real effects, not the real thing. It's like a cheap PC sound card separate from the other components and has a small power plug on it. Wiggle that plug or unplug to see if it changes. It won't cut her sound, just the effects. Make sure the effects are off and verify, if using a footswitch, that it is working properly.

Posted on Mar 29, 2014

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Posted on Jan 02, 2017

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SOURCE: Hi,I turned on my Marshall mg series 100 dfx and

I suspect the power supply for the effects processor has failed. The effects unit will "go crazy" when power supply is too low voltage.

If the amp has loud noise, then the power amp portion is PROBABLY OK.

I had a similar problem in a Behringer amp caused by a bad electrolytic filter cap.

Posted on Sep 03, 2009

  • 5603 Answers

SOURCE: Marshall MG50 DFX, the volume knob OD channel crackles

Either the control is damaged (happens if they get hit) or it is possible the circuit board it is mounted on has broken solder OR worse, a crack near the control. The unit will require servicing. Parts are readily available.

Posted on Jan 31, 2010

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SOURCE: Marshall MG50 DFX amp line out/headphones not working

Well, your problem isn't very descriptive to help troubleshoot online, but first question would be; are you using the correct size jack? The second would be have they worked before? If the answer is yes to both questions, then the problem might be the jack itself on your amp. There is a prong inside the headphone line that hugs the plug to your phones. If the prong has loosened enough where the connection is poor or not at all, you will not get any sound. If the headphone jack has NEVER worked before, than it sound like a wiring issue on your board somewhere. If you are not familiar with a soldering gun, then I would take your amp in to get it fixed. should be a minor quick fix costing anywhere between $15-$30 to have a shop do it. Hope this helps. (also try different headphones if you haven't already. Could be a bad pair)

Posted on Mar 09, 2010

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SOURCE: i have a marshall mg

NOT SURE WHAT FLUG MEANS? IF YOU MEAN PLUG. CALL GHOST BUSTERS.

Posted on Oct 25, 2010

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SOURCE: My Marshall MG 50 DFX has a noisy fan. Can I take

Bo, the fans cannot be lubricated. If the noise is from bearings, replacement is the only option.

Posted on Dec 06, 2010

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I suspect the power supply for the effects processor has failed. The effects unit will "go crazy" when power supply is too low voltage.

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I had a similar problem in a Behringer amp caused by a bad electrolytic filter cap.

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