Salve a tutti ho un Marshall 25 code.Il problema è  che quando sono attivi i preset in sottofondo si sente un fruscio continuo e interferenze più alte del suono della mia guitar.  Come posso risolvere il problema. 

Grazie

I have a Marshall Code 50 running MCU version 1.44 and Gateway (Android version 1.5.5) on a Samsung Galaxy S9+ running the latest OS. I can bluetooth pair to the amp and play music, but can not connect to the amp to change my presets from the library.  I have reloaded the latest firmware on the amp, deleted and reinstalled the Gateway app, paired and unpaired several times.  Nothing seems to work.  I even grabbed my old Galaxy S7 Edge phone and that Gateway app on it does the same thing.  Does my amp need to be serviced for Bluetooth connectivity?

how do i find the registration card online ?

Is it possible that the firmware version that came with amps can be released as an update in order to reset the amp to factory? Maybe this can help with the Bluetooth issue until new firmware can be issued?

So, my CODE 25's speaker doesn't work. The rest of the electronics turn on and work fine. I know it's getting signal because the tuner works. No issues with the display.

But there's no sound either from the speaker or the headphone jack. So, the signal isn't getting anywhere other than into the input port and as far as the top circuit board, I assume.

I note in the picture below that I took that the red and black wires aren't connected to anything on the board to the right. There also appears to be two empty connections. I wonder if they need to go on there and if I can safely do so myself. Any help appreciated.

Also, yes, the transformer isn't secured to anything. I found two loose screws inside that I assume are meant to secure it to the side of the cabinet.

Bar code does not have enough characters to be the serial number.

When I connect my Code 50 to my PC via USB, it only plays the left audio of music but not the right audio. This problem does not persist when connected via Bluetooth to my phone.

Hi there

I recently bought a code 25 and am inlove with the amp. One problem your app does not work on IOS. I have not tested it on android devices as I don't own any Android devices.

The app opens and everything but the sign in procedure does not work

Please fix your app!!

Hi

I purchased a Marshall Code 100H in April 2019.

It was replaced under warranty last week by the retailer as it had developed a constant electronic beeping sound.

I received the new head and right out the box it was much improved. I decided to get to grips with loading up my presets and patches so began by carrying out the latest firmware update as advised by Marshall, alas, the electronic beeping sound has returned.

It is constant and present with or without a guitar plugged in, elevates with master volume, cannot be fixed with a noise gate, the amp has been plugged in several different venues and the noise persists and it was not auidable before updating to firmware V1.44.  Jul 2019.

Is there a means of rolling back the firmware or is there a known fix for this issue, it doesn't seem fair the retailer has to replace another amp which was fine until update was applied. Any advice would be much appreciated.

Thanks

Hi all. I recently bought a DSL20 brand new and something is up with the effects loop. For some reason, when I turn it on, the volume drops way down and you can barely hear it. Any idea why? I've only owned it for a couple of months and the only thing I have running through the loop is my DD-7 digital delay.

I bought my new MG101CFX two weeks ago. I did not played guitar on that amp so much. Few days ago I noticed that something is going wrong. After turning on the amp and start playing guitar, the fan is turning on and start spining, but after 20 seconds it is spining faster and stops make a sound from the guitar. After 2-3 minutes the fan stops running and the amp is making sound from the guitar. But, unfortunetaly it lasts for 10 seconds, then this cycle repeats continuously.

What should I do?

why doesn't my android phone connect to the amp blue tooth?

Marshall gateway app version 1.5.2 doesn't fit the screen of LG G7.

MENU button is not seen at all.

And the last preset number 99 it's not seen in the preset list.

Please see the screen. Android 8.0.0

I have recently been given the above amp and before I connect it to a speaker and switch it on I am concerned to know the correct protocol for connecting a speaker cabinet(s).  The speaker output sockets have no information directly next to them but a label elsewhere on the rear of the amp states "WARNING. Not to be used with speaker cabinets of less than 4 ohms"

My queries are:-

1. Is it safe (i.e. without risk of damage to the amp) to use just one speaker output as long as it is connected to a speaker cabinet of 4 ohms minimum impedance and appropriate wattage?

2. When using both speaker outputs can they both be connected to cabinets each of 4 ohms minimum impedance or are the outputs paralleled in which case would I need to work with two cabinets each of 8 ohms to arrive at a 4 ohms minimum impedance in total?

Apologies if the answer to this seems obvious but I have a little knowledge of these matters and while a little knowledge can be 'a dangerous thing' it can also lead you to be concerned (possibly unnecessarily) about getting things right!

Thanks in anticipation

Salve! Non riesco a collegare il code 25 al sito My.marshall per provare i preset disponibili. L'appplicazione gateway si collega e la luce azzurra si blocca riconoscendo il Bluetooth.
Dal sito My.marshall mi dice codice non connesso.... anche se riesco ad usare l'applicazione Gateway e risulto connesso.
Qualche suggerimento? Sto usando Crome aggiornato con smartphone Android.
Grazie.

I haven’t been able to find the answer to this via web search. Does anyone know if the effects loop in the 100h is buffered, or not?  Has anyone noticed dramatic tone loss if using 20’ send and return cables (40’ total)? Thanks!

Hello guys,

I recently purchased a Year model 1973 50 watt Plexi head and wanted to replace the knobs on the amp.  The current knobs have set-screw knobs. 

Question:  Do the push-on replacement knobs fit properly on the shafts?  Or do I need to replace with set-screw knobs only?

Thanks

Victor

I've had my CODE since the release days, and haven't really used the speakers at all until now since I lived in an apartment until now, so only used it for recording through the USB port before.

Now that I've been playing it for real for a couple of weeks, I've noticed something worrying. Even at the lowest volume the amp produces a terribly sharp frequency that is seriously hurting my ears. I've tried literally every stock preset and there's no difference, it's completely static. I've tried adjusting the gate,presence and every possible setting without any difference. So I suspect(actually hope) that something is broken and that it's just not the nature/sound of the amp, cause that would not make for a very usable amp. 

I can crank my other amps without this issue, so it's not my ears that are broken. I've been speculating about the speakers being so unused that they need to loose up with time, but that is just wishful thinking perhaps?

I was hoping someone else could relate to this and have experienced the same thing, and possibly a solution?

Thanks in advance.

I'm trying to save my edit for a preset at the default location with another name. I'm using the app and it won't save the edit. Do I have to save it with the amp button or the save button on my device screen?

Is the a Marshall Forum for all types of Amps or just Code amps?   I need a user manual for a JVM 205H.   Where on Marshall's web page do  i go please?

thanks