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Showing results 1 to 20 of 24
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Hi, so there's a high pitch whining sound coming from my amp both with and without the guitar plugged inI believe it started around when I first tried the in-built bluetooth feature and think this is the reason for my troubles. The whine starts at 10% on the master volume knob and progressively gets louder as you crank it up

When I tick the 'share audio' button on  my phone, the whining stops, and is replaced by a very managable amount of noise. 

I've already done a factory reset to try and disable bluetooth but the whine is unchanged and bluetooth is still on. I've also tried disabling all bluetooth devices nearby, shutting off my pc, taking away my phones and switching wall sockets (although I haven't tried outside my room yet).

Is there any way to disable bluetooth on the CODE 50? Or maybe I can take it apart and remove the transmitter myself.

Here's a demonstration of me turning on the amp and moving the mic closer (Master volume at 100%)

 

edited 26 Feb 2021 at 04:48 PM

Vilnis 373

asked 26 Feb 2021 at 04:43 PM

Vilnis 373
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I noticed my Marshall Code  25 makes a hissing noise when I play through any of the clean amp models. This hissing noise is clearly audible when I play a note on the low E string. It reminds me of an old cassette tape. This is especially apparent with the cab emulation switched off. On the higher strings there is no problem. Is this normal? The hiss doesn't go away with the noise gate turned on.  I have this problem with both firmware versions 1.44 and 1.45. 

asked 22 Feb 2021 at 03:09 PM

Stefan Kolev (1)
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OD1 and OD2 getting terrible noise and squealing when Effects loop is engaged. I tried the Boss NS-2 in the loop and it had little effect on it. Loop pedals are TC Electronic Nova Delay, TC Electronic Chorus/flanger, Boss Digital Reverb, Boss NS-2 Noise Suppressor.

Outside the loop is Tuner, Volume pedal, BBE sonic stomp, Rockett Blue note, Wah pedal

I assume its a ground issue interference but no idea how to stop it.

asked 30 Aug 2020 at 07:16 PM

NATHAN STELLMAN
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I've noticed that when switching channels, specifically from any other channel to the Clean channel in Green mode, I get an audible pop. Not like a firecracker going off, but definitely bothersome. If I set the Clean channel to Orange mode the pop does not happen. So, the pop only happens when switching to Clean/Green. This pop occurs when switching via the front panel buttons or my midi Voodoo Lab ground Control. 

I've had another JVM410H owner try to reproduce the issue, and they experienced the same pop when switching via the front panel buttons, but did not experience the pop when using the Marshall footswitch.

How can I correct this?

asked 12 Aug 2020 at 07:40 PM

Anthony Watkins
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Dsl20 head, on 10w is fine but on 20w there is a thud sound after each note played, any ideas?

asked 26 Jun 2020 at 10:31 AM

Philip Kendall
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Hi there,

I had a Marshall dsl40cr brand new and out the box it "hissed" and "wooshed" quite bad, so much so I had to send it back.

I was sent a replacement that was alot better, but still a touch of noise.

This isn't electrical noise or interference - I know what that sounds like - this is something different.

It's only recently I've been too bothered, as it seems a lot of people have this issue.

My second issues is, when swapping between the 2 master volumes there is a popping noise - that's regardless of if 1 is higher than 2 or vice versa. It's like a static pop and happens via footswitch or on the panel.

I been reading the noise can be due to caps and resistors that need swapping and the popping is due to a faulty controller. Surely if these are known problems, this should be covered.

Any help is greatly appreciated!

Thanks!

asked 13 May 2020 at 02:38 PM

Nathan Martin
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Hi Marshall,

 I recently bougth the DSL20CR marshall amp and it makes this noise on ultra gain channel.

https://youtu.be/VbtZsJTpAMs

What can cause this noise, could it be defective? I've tried it in different places in case it could be a power supply interference but the noise is still present.

 

Thanks in advance.

Regards

 

asked 11 May 2020 at 12:39 PM

Samuel Rodríguez
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After about 3 months of very light usage (home use, ~20 hours), my Code 50 developed a harsh noise problem: https://youtu.be/S2cTK8fsfTE. It's on every preset and can be heard via the speaker and when using headphones. I tried using different guitars/cables/power cords/rooms/outlets, reloading firmware, and resetting the presets to factory default; but the noise continues.  Anything else I can try before I return it for replacement/warranty work?

edited 16 Mar 2020 at 12:40 AM

Jerry Stromberg

asked 15 Mar 2020 at 10:32 PM

Jerry Stromberg
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Hi. I just bought Marshall 1959 HW and it's constantly humming when it's on. I have Wizard Modern Classic Amp and ENGL Powerball 2 and they don't hum like that when ON. Is it normal? Also when I strum a chord very loud mechanical noise going out of the back. Check the video I shot to hear how both issues sound:

asked 30 Jan 2020 at 04:15 AM

Andrew Zelenokhat
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My 1974x amp is quiet when nothing is plugged into it, but as soon as I plug my intrument cable into the non-tremolo channel, I get this awful cyclic noise.  Does anyone know what to do?   I replaced the ECC83 tubes one by one (testing it between each tube replacement), but it didn't fix the problem.

Here's a video of my problem.

https://youtu.be/lN_lhUAu7jA

 

asked 19 Dec 2019 at 11:10 PM

Brandon Isaak
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Dear,


I have a new Marshall DSL1CR and it make a popping noise when changing channels from the Ultra gain to Classic gain while playing.

If I mute the guitar, or changing channels from the Classic gain to Ultra gain or using the emulated out there is no pop.

There is same noise when switching off it.

Is it normal or somethings wrong with my combo?

Thanks & best regards.

asked 16 Nov 2019 at 02:29 PM

József Szekeres
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2

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Hello, admin, why you delete my posts? I bought an expensive amplifier that is noisy and I need a solution to my problem.

I can not send the amplifier back due to the rules of the customs of Russia. It turns out too expensive.
I ask technical support to help me solve the noise problem in the new amplifier. You are, after all, Marshall, not  Noname Firm.

asked 30 Oct 2019 at 08:50 AM

Nick Gurovich
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I too am bugged by the constant high frequency whine coming from my Code 50's power section. It has nothing to do with the preamp or patch, but rather the level of the power amp output. It is rather high frequency and constant, and varies a bit when you move your head. But the problem does exist, and it sounds like some high frequencies are not being fitered well by the Code 50 & 100 power supplies or output section. A number of users have now complained about this problem. I have a solid background in electronics and am not a flake! I'm an LA studio musician and this noise is not good for professional recording. I'm hoping it is something that is easily fixable, because I love the sounds I'm getting from this amp.

asked 11 May 2019 at 11:44 PM

Hadley Hockensmith (1)
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2

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Hello. 

I've just bought brand new DSL 5 CR. 

When I switch on the combo for the firts time everything is fine. 

Then when I swich off and switch on again I hear three quite loud bang noises. The third bang noise is when the CHANNEL SELECT diode make red or green. 

Is it normal or somethings wrong with my combo? 

asked 22 Feb 2019 at 11:36 AM

Bart Troczynski
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2

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Hey Marshall Forum!

About a year ago I bought my first ever Marshall amplifier; the Silver Jubilee 100W head (with 4x12 cab).
Since I use it mostly at home, I haven't cranked the volume all that much. But when I do, I notice a loud humming noise.

Today I turned the amp on, without having the guitar cable attached to it, cranked up the Master volume (with 0 gain!) and it hummed like crazy. 
What could be the source of the humming?? And more importantly, how can I get rid of this awful humming? 

The only cables that were attached were the footswitch, FX in/out and the power cable. 

asked 24 Oct 2018 at 05:58 PM

Jarnick Hulzebos
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I've noticed that my amp makes a fizz noise in any volume even without any cables pluged in.

Another people here already complain about this issue, it seems like a design problem.

Is there a way to solve that?

Thank you.

asked 03 Oct 2018 at 02:19 PM

keith sarate (1)
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Hey 

I noticed this a few days ago. When i plug in my 2525H head and run the overdrive channel, there is a very strong loud (sounds like) electrical noise. It goes away when i remove the pedals hooked up into the loop. 

Now i run a couple of EQ's, mxr 10band eqs on 18v power and a DD7 delay pedal in the loop. I have checked each pedal individually and also changed the cables used and it doesnt go away. 

I also checked if its a power supply issue, i run a t rex fuel tank chameleon that powers all my pedals, the 18v jack i have used a daisy chain to hook up 3 pedals, a Fulltone OCD, and the 2 eq pedals, i checked the power draw on each and it is wayy within the required power that is given out of that 18v socket. 

Please help, this is recent, i never had this problem before. I've gigged with this amp on a few occassions too, noithing was noticeable, and with this issue its very noticeable on low volumes as well. 

asked 06 Sep 2018 at 06:16 PM

Shashvat Pandit
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760

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Does anybody else have a noise issue after an update on the firmware?

My Marshall code 50 was dead quiet until I have made an update on the firmware. 

asked 11 Aug 2018 at 11:56 AM

JJ Jung
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1.2k

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Hi there, guys 

I’m new to the forum and new to valve amps. In fact, I’ve just purchased my first valve amp: a brand new JCM 800 2203 reissue.

Running through a 1960av and a Rivera Rock Crusher attenuator and it sounds awesome - except for these damn so called ghost notes (just learned about them) that only happen when I set the master volume at higher values (above 6.5 or 7). It also only seems audible in higher pitches around the 12 fret.

Reading a lot about filter caps and stuff. But it’s a brand new amp and I still have warranty. So that’s not the case for trying to fix it myself.

My question is: should I assume it’s “normal” and keep my amp? If that’s the case, how can I crank it (and get that  beautiful power section overdrive) and minimize those annoying ghost notes? Is electric grounding improvement / adding a power filter of any good?

Or you guys think I should go to Marshall assistance and ask for a replacement?

Thank you very much,

Any help appreciated,

asked 15 Jul 2018 at 03:57 PM

Jopa Travassos
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Hi,

I recently bought a Marshall DSL20HR head and a Marshall 1936 Lead 2x12 cab. 

The head has a cab emulator out, so I hooked it up to my audio interface and was playing through my pc monitors. I turned up the volume and gain on the ultra gain channel and a strange buzz/noise came from the head when I would strum a chord or pick a note.

I only noticed this because I had the level on my interface low as I was just testing the cab emulator out. I have alos tested this with the head not plugged into either my interface or the cab and still get a strange noise/buzz.

As this is my first valve head I'm not sure if this is just something that happens when you turn up the volume and gain - as the amp is being pushed harder, or if there is a fault with the head and I need to take it back to the shop I purchased it from.

I will link below some video of the problem. The first video sounds worse than it is as I put my phone directly on top of the head as I play. It's not the signal noise from the amp that I am worried about, it's the rattle when I strum chords or hit notes...

https://youtu.be/ftOsSKeM8H4

https://www.youtube.com/watch?v=CWTiPugPfZ4

Any help would be greatly appreciated, I'm probably just over reacting, but it would be good to get some reassurance.

Thanks! \m/

asked 09 Jul 2018 at 06:08 PM

Rory Judge
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