Question about Marshall Amplification Marshall MG15FX Guitar Combo Amplifier - 8 Inch, 15 Watts

1 Answer

Gain knob doesn't work well.

I have a Marshall MG15Fx, the problem is that the bass and mid parts are not heardable until i press the gain knob with my finger a little, if i release the problem reappears. It seems that it doesn't affect the treble.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

  • Contributor
  • 30 Answers

You may have a loose connection

Posted on Jan 06, 2013

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Marshall mg15fx. no sound coming. the only sound i get is buzz when switching the master knob.


I would test by first trying a different guitar cord. If the fault is still there, try jumpering the effects in and out jacks with a patch cord. If there is sound now, clean the two jacks with contact spray and working a 1/4 inch plug in and out of the two jacks.

Jul 04, 2014 | Marshall Amplification Marshall MG15 15...

1 Answer

I'm trying to plug an active speaker into aux 3 for a third monitor mix but it doesn't work (I do the same with aux 1 and 2). Am I missing something? Cheers,


I answered another post of this earlier. The AUX3 is strictly POST FADER... you MUST turn the channel sliding fader up to send signal to AUX 3. Also the AUX3 channel gain KNOB must be turned up. Also the AUX master gain KNOB must be turned up. Make sure your cablles are balanced TRS cables from the mixer to the powered speakers.

Sep 02, 2011 | Soundcraft FX16ii 16Channel Audio Mixer

1 Answer

The guitar is not amplifying


faulty lead? when the lead is plugged in turn the amp distortion on (may be called 'gain') and when you tap the end that goes into the guitar with your finger you should hear a buzz. try another lead if not, and if it still doesn't work make sure that volume is up on the amp and the guitar. there may also be a knob in the back of the amp, turn that up too (but not all the way or when you do get it working you'll blow the speakers out).

Apr 19, 2011 | Marshall Amplification Marshall MG Guitar...

1 Answer

I have an MG30 FX amp. In manual mode when I change channels amp seems to work incorrectly. E.g. i select clean, then set up delay. When I change to crunch then, there's no delay, though from the manual I...


Typically ONLY one effect will be active at a time unless there is a specific mixed effect available. The gain levels between the different effects are often not too consistent. In summation, this is probably the nature of the beast.

Mar 12, 2011 | Marshall Amplification Marshall MG4 Series...

1 Answer

This bass squels if you have a bass head and cabinet. i had a 100W amp and it played fine then upgraded to a head/cab. tryed playing it with loud volume, squels. anyway to fix this?


Turn down the treble gain and mid gain... you don't need it for a bass. Prevent the guitar from "hearing" the output of the amp directly. The guitar strings make a good microphone.

Feb 27, 2011 | Epiphone EBO Electric Bass Guitar...

1 Answer

I'm having some crazy feed back with either my amp and i'm not sure what its from or if its my guitar but, every time i go to practice or to play a show i kill peoples ears. Now i play death metal and i...


If the guitar can "hear" the sound, the strings can resonate from the sound and result in feedback. Running at maximum gain is asking for trouble. That causes distortion which drive the speaker as a square wave and worsens the problem. Also back off the treble as you can have supersonic feedback that you can't hear but will heat up your amp.
Test by allowing the feedback and then dampen the strings... if this stops the feedback you need to move the amp away from the guitar. Being a passive pickup makes NO DIFFERENCE about the problem.

Nov 22, 2010 | Marshall MG100HDFX 100-Watt Amplifier Head

1 Answer

I have just purchased a les paul ultra 2. The nano pick up does not work without increasing the gain. I thought the volume control on the front controlled the nano pick up and the gain was for just that. I...


You need to adjust the controls for the nano on the control cavity plate on the back of the guitar the way you want them first. Here is a link to a simplified explanation:http://www2.gibson.com/Products/Electric-Guitars/Les-Paul/Epiphone/Les-Paul-Standard-Ultra-II.aspx A better explanation should be in the manual but I don't think they did as good of a job as they should have.

Oct 17, 2010 | Epiphone Les Paul 100 Electric Guitar

4 Answers

Gain knob produced crackling sound


This is usually caused by oxidation in the potentiometer (fancy name for your volume control, also called a pot). The solution is to buy a small spray can of tuner cleaner, then unplug the amp and partially extract the electronics chassis from the case -- usually by removing screws in the top (but NOT usually the top handle screws), then gently sliding the chassis forward until you can easily see and reach behind your gain knob. You should see a squashed metal cylinder attached thru the faceplate to that knob -- that's the pot. It will probably have 3 wires attached -- don't worry: these never have voltages high enough to feel even when the amp is on. Either near where these wires are attached or elsewhere on that cylinder there should be one or more small holes. Using the small plastic tube that came with that spray can of tuner cleaner, spray a small amount of cleaner into the pot, then turn the gain knob from maximum to minimum and back several times. I usually do this by plugging the amp into a receptacle and moving the knob this way BEFORE using the spray, listening for the noises, then I spray it, manipulate the knob as described and hear the noise disappear. Unless you're confident about doing that, DON'T! Instead, slide the chassis back into the case and plug the amp in, then see if the noise is gone. If so, put in all the screws and you're done. If there's a noticeable improvement, but still some noise, move the knob bank and forth a few more times to see if that fixes it; if not, unplug the amp, slide the chassis out again and repeat the spraying procedure one time, then reassemble the amp and plug it in. If your problem is still not gone, you'll have to replace the pot. If you know how to solder WELL, you can order another volume pot thru a Marshall dealer or online, OR you can remove the pot and take it to a local electronics store where they can probably find an equivalent potentiometer at a lower price than the genuine Marshall part -- be sure to ask for one with "an audio taper" (a logarithmic change in resistance that corresponds to how audio amplifiers control sound). Good luck, and please post your results on this website.

Jul 08, 2009 | Marshall Mg100dfx 100-Watt Combo Guitar...

2 Answers

MG100HDFX Amp - crunch setting seems too loud


There are 2 channels, Which means there are 2 sets of knobs ... One for clean and one for crunch. Start out with a low master volume and set up the crunch, Then the clen and switch between the 2 and make adjustments until they match volume wise ... Then turn the master up.

May 12, 2009 | Marshall MG100HDFX 100-Watt Amplifier Head

Not finding what you are looking for?
Marshall Amplification Marshall MG15FX Guitar Combo Amplifier - 8 Inch, 15 Watts Logo

Related Topics:

70 people viewed this question

Ask a Question

Usually answered in minutes!

Top Marshall Amplification Music Experts

Michial Gueffroy

Level 3 Expert

1138 Answers

Vito Vacirca Jr.

Level 2 Expert

140 Answers

matt martin
matt martin

Level 3 Expert

1212 Answers

Are you a Marshall Amplification Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...