I turned all of the presets off, all i want is a plain Plexi or hot rod amp. I have my own reverb and my own delay and EQ. So I took Marshall Fury Lead which sounds pretty good and turned all the other stuff off...

then when i get app. on my phone turned on it goes and overwrites the preset on the Code 100 head. ??? wtf? Now its noisey and feeding back an out of control.

I cannot risk having an amp that squeals and changes presets like that without me asking it. There are too many settings too much to go wrong. 

I am starting to regret buying this thing.

How do i fix it so that the preset stays in the cloud on the amp and everywhere else forever!.. Until i change it...Can anyone please help with that?

its a 100 watt Code. I just want it to be a dirty power amp, no cab simulator nothing...

thanks, NIck

I recently got a Code 50. After a few weeks of using it and learning the my.Marshall website, I realized it did not have any of the newer firmware updates. I updated it with v. 1.47 and now I do not get any guitar sound. I get sound from my phone when it's connected via bluetooth. How can I install the previous version of firmware?

I tried using the foot peddle cable to see if it is a cable issue and strange things happened. I hear some strange music broadcast. Not sure if some neighboring device connected to my amp via bluetooth. Is there any way to turn bluetooth off and on?

I tried doing the factory reset and it does not reset the firmware. Is it supposed to reset the firmware with the factory reset function?

Thanks.

UPDATE: I got this resolved. It turned out to be an issue with the guitar.

I have a JMP-1 feeding a Valvestate 8004. Should the Master output be set at +4 or -20 db? Thank you!

Dear fellow Marshallers,

I have recently bought a Marshall DSL15C amp for my guitar and was looking to use headphones for silent practice. I tried disconnecting the amp output on the back side of the speaker and plugging in my headphones instead - this doesn't seem to work perfectly as my headphones only play in one ear and the sound is crazy high. 

Is there a good way to use headphones on this amp or do I need to buy another amp for silent practice?

Rock on,

Magnus

How to add / change thumbnail pic for a preset ?

i want to update my firmware on my code 50 amp

I've brand new Code 50 with latest firmware (1.47).

From time to time, the speakers output turns off. I do have to poweroff OR activate bluetooth detection then exit button.

Clearly, this is a Bluetooh issue - and I need a way to turn it off while playing.

Actyally, I've bought the amp and the original pedal switch because I cannot use phone bluetooth while playing.

Please, this is a MAJOR issue, I really need your help on turning bluetooth off.

I have a DSL20H, a DSL40CR and now a marvelous new SC20H. I have a TC electronics Nova pedal which i use in the effects loops of the two DSL amps. When i plug it into the SC20H there is an audible hissy noise which is not there on either DSL amps. Is the effects model fundamentally different between the SC20H and the DSL amps ? Should i expect the SC20H to have a noiser effects loop ? 

I have a DSL H and two 1936 Cabinets. What is the proper way to hook these cabinets up to my amplifier

I have a Apple laptop with chrome installed.Tryed to install the latest firmware but it goes to 100% and sticks.The new amp is now useless .Please could you help.

Hi all,

I have a brand new Code 50 + Footswitch - got them today.  I have saved 3 of my own presets to Bank A 1 2 3.  No problem. Also assigned the tuner to a switch.  That was all fairly straightforward.  

However, I am unable to assign any other (new) presets to any of the other banks. When I follow the exact same process I used for Bank A - The footswitch just defaults to one of the amps, stock presets (all of which sound nasty).

I've watched the tutorials. At the moment, I have only 3 presets of my making on the switch and no, apparent way, of using any of the other banks.

Am I missing something obvious?

Cheers,

Mike

I want to know if its possible to use two effects from the same "area" at the same time, like a distortion with pitch shifter, or tremolo with flanger, phaser, or chorus.
My apologies if my english is not perfect, im not a native speaker

I can't figure out how to register my new Marshall Amp on your website???

I've recently bought a new computer that only has USB C ports on it, and the CODE50 comes with the USB mini b to USB A cable, and I previously used this to record the amp sounds directly into Ableton and it would work just fine. To overcome this issue of not having the right USB I first used an adapter, but this revealed a new issue, that being a lot of latency and some fizzly sounds, leading me to believe the connectivity through the adapter was faulty. I bought a USB mini b to USB C cable to try to fix this issue, but it persits, and now when I try and connect my amp to my computer for anything, such as to see if there are updates or to try presets from the library, it seems that no connection is recognised at all. I was wondering if there were any drivers to install to help fix this issue, or if it was something else.

The first time I turned on the amp and plugged in, there was a very loud screeching noise from the amp. I had to turn it off immediately. Any idea why that haappened?

Have enjoyed code 25 for a few years.  Suddenly the amp has started to drop output.  Happens after a few minutes of playing.  All lights on, no noisy pots or anything.  Just no output.  I can switch it off and back on and output restores.  But after a short time, same thing.  No output, suddenly cuts out.  Nothing.  Anyone seen this?

Hi  I am new around the forum.  

I have written software in the past for editing Alesis quadraverbs and want to do something for my JMP-1.  Alesis published their midi communications protocol but I haven't found anything for the JMP-1.   Does anyone on the forum or at Marshall have something they can share please?

thanks

Phil

Hi, does code 25 works with Tonebridge app on Android, connected by irig 2?

I don't want to always use my phone when playing. There used to be a way to save presets directly in the amp but I can't seem to do it anymore. These past updates have really screwed up the code amp for me. It doesn't seem like any of the support videos are accurate any longer.