Hiya, I have the Code 25 Amp and have for the last couple of years. I have recently updated my phone to an Iphone 12 pro.  

The Gateway App has installed on my phone. My setting are saying the Code 25 is connected via bluetooth, but the Code 25 and the Gateway App are not connecting. 

I have removed the Gateway App from my phone and re-installed it as advised and have re-connected the Bluetooth from the phone to the Amp once again as advised. 

I try to scan for the amp but it will not connect via the bluetooth.

Can you please help with a solution. 

Thank you. 

Hi There,

I have just bought a CODE 25 amp and i am having trouble pairint it with the Gateway app.

I have done all the suggested processes, reboot, re install etc etc...

It was working yesterday afternoon, then in the evening it just will not connect?

The amp connects to th iphone 7 plus, finds the amp in the menu but wont connect, just keeps saying Connection Rejected!

So frustrating, please can you help?

Cheers DC

I have had a chance to spend a few days with the Marshall code 25 and I would like to share with you a few of my findings. I have played guitar professionally for over 30 years and have had all makes and models of guitars and amps in my time, but in general I would have killed for the equipment available to guitarist today.

This is the point where I look at the Code 25 and think “that looks like fun”. I have a few amps kicking about already, mostly gigging volume amps but I also have a Blackstar ID-Core 40, so this would be in reality what I would compare the Code 25 against.

Firstly my experience with the amp and a look around these forums makes one thing apparent. This amp is well named because it is a bit of an enigma.Out of the box I would consider the amplifier not fit for purpose this is really down to a few reasons.

Firstly, some of the presets are just absolutely terrible, I mean some of the worst patches I’ve ever heard on anything, “Small combo” and the “Brit” overdrive amps for instance are shockingly bad. You can make the excuse that all amp and effects units come with bad presets. However this is usually down to strange or weird effects to give bizarre sounds to show off effects but that nobody would ever use in a musical context. However some patches (such as Small Combo) are just basic amp modelling with no effects and are still absolutely terrible. Maybe these sound better on the 50 or 100, but if that’s the case remove them from the 25 it just gives a bad impression.

Secondly, the amp is stupidly loud. I don’t know if this is a marketing decision, but Marshall should look at its target demographic. This thing is a small bedroom practice amp, maybe at a push for some very small live situations, but that is it. Why make the thing so loud? If you need to use this amp near anything over half volume you have bought the wrong amp it’s as simple as that.

Thirdly, some of the modelling is not all it could be with digital artefacts (in the low end in particular), and a fizzy noise gate that for some reason is on patches where there is absolutely no need to have it as the patch is pretty quiet. Once again this is not a professional gigging or recording product and it should be judgged accordingly.

The last bad point I would say against this amp is the tuner, both onboard and on the app are two of the least responsive and wildly inaccurate tuners I have ever seen. Really not even close to tune! Put this down to another marketing tick box.

OK, now the good points.

It seems pretty well made and solid for what it is.

I like the size and weight, ideal for a bedroom practice amp.

I like the complete range of controls on the amp, and how you can do everything on the amp that you can do on the app, and it’s easy to do. Great user interface design work.

I like the Bluetooth features and the app. I know people have had problems with Bluetooth, but both my IOS and Android phones connected right away and are stable. I can stream music no problem from outside the house or in other rooms with no issues.

I like having 100 presets to store all the patches I could want (My Blackstar only had 6, and you can only have 1 for each model).

The headphone socket sounds OK, but if I wanted that as a primary feature I would have just bought headphone amp with effects.

I don’t use the recording over USB feature. If I did I wouldn’t expect something this cheap to be amazing. Once again if you want this you probably have bought the wrong product, and are in the wrong price bracket.

I like the cost, its amazing what it does for the money.

I like the sounds, now that I’ve got rid of the awful ones.

It looks pretty cool.

It’s a Marshall.

To make this amp useable, I basically had to do the following:

1. Delete all those terrible patches that are just filler and basically just give the user a bad experience. After doing this I was left with around 20 good sounding patches and 20 OK patches, the other 60 I replaced with a patch called “Blank” (which I have put up on this site). That way every patch sound good to me.
2. I turned the Mater volume up to ¼ (around 9 o’clock)  and went through the remaining patches adjusting the patch volume of each to make it a sensible volume for bedroom levels. This ranged from around 0.3 to 5 for most patches depending on the patch. This means that you have more control over the master volume and can change patches without is suddenly blowing you head off. There is still plent of volume in the amp after doing this. OK I admit if I want to use headphones I have to turn the master up around half way, but that’s no big deal. Likewise as I said I don’t use the USB for recording, but I assume I would have to turn up the volume for that too. I don’t see that as a problem either for a product in this price range.

Overall I like the amp and doing just these 2 thing make it much more of a pleasure to use. The volume level are more what they should be for a product of this type and I don’t ever hear any of the awful patches (there are plenty of good ones).

Maybe other people can share their first experiences or tips with the Code 25?

I have a 25 amp code and I have been trying to pair of with my fire tablet. The tablet recognises it but won't connect. 

I have no problems connecting it to my iPhone which I normally use but the tablet would handy so my 10 year old son could use it when I'm at work. 

Can any one help?

Good morning,

 I have a Code 25 and am using my Iphone with Gateway to control it. How do I add downloaded presets to the app so I can put them into the amp?

Can someone please tell me how to backup default presets from my Marshall Code 50 AMP to the My.Marshall website account (if this is even possible)?  I know there are a number of Manuals that can be downloaded; but I can find nothing that provides an overview of how to make that happen. I have Gateway on my iPhone, but that donesn't provide relevant information either. I will so appreciate information on whether it is possible to backup presets, preferably to my My.Marshall account?

Thanks,

Dick Gleason

I have followed all the Forum and Support threads, re-installed current  Amp firmware, updated the Gateway App, restared everything several times... the iPhone does not see the Amp when blue light is flashing to 'pair'. Also not visible to ipad or other devices so I'm assuming it's a problem with the CODE system itself. I haven't even got as far as connecting the Gateway App!

Looking through the forum, this is clearly not an isolated event - looks like the Amp firmware is WAY behind current Bluetooth versions.

Any suggestions please? I am still within my return for credit timeline - should I send it back to the dealer?

I just bought a Marshall code and found the apps on iOS do not work. Research says that the problem is the app need s to be updated. When are you going to update the IOS apps ?  

Code 50 does not connect to the gateway app. Iphone 11.

I just got my Code 50 and played music via Bluetooth thru the amp. I noticed the volume is very low from the phone compared to my guitar as I play along. Is there a way to increase the volume of the Bluetooth separately? 
thanks 

Marshall,

I purchased an iPad 2020 and I can not find an adapter that works to plug into my CODE to add presets. Any thoughts?

Having constant issues trying to connect iPad to Code25 via Bluetooth. Sometimes it works , sometimes it doesn't.No consistent behavior.  Yes I have made sure Code25 is latest version, yes I have updated IPad. Yes I have turned it off and on again (iPad and Code). I have not hit it with a hammer YET...Settings in Ipad says connected, Menu in Gateway App says not connected.  Do search in Menu > Code is found> tap Code ID and says its connecting , Just a whirling  wheel. Meanwhile IPad settings states connected. Extremely frustrated. Is there a solution to this or did I just get conned into buying something that doesn't do what it was sold to do. Help please............ 

Hello, 

since several weeks, I can't use gateway app for my CODE 25.

It seems to be ok with bluetooth, because if I lauch a video on my iphone, i have sound on the amp, and the blue light is ok. 

but on the gateway app, impossible to connect. thera is not the little display (amp / iphone), 

when i do a scan, then i choose the CODE V020093C8E, but I have this message:

"You may only control amps you are already connected to for audio output"

I tried to do a new configuration of bluetooth, no success,

I tried to delete app from my phone, then download again, no success.

The amp is up to date.

help please.

Thanks.

Laurent

Hi Marshall,
I am havin issues connecting my CODE 50 with my iPhone via Marshall Gatway app. Bluetooth connection is working and is connected with iPhone, but when I open app, app finds the CODE 50 amp and then it says "Connecting..." and nothing is going on. If I tap on my amp under Amps Detected, gives me this message: 
"Connection Rejected - You may only control amps you are already connected to for audio output".  Please help.

Hi,

I have found a weird thing that may or may not be known with iOS + Bluetooth and the Code 50.

The CODE 50 when playing backing tracks / using it as a Bluetooth speaker is very quiet (So the master is wacked up and the playing guitar is extremely loud). 

and the weirdest thing (which physically makes sense but still it shouldn't do it) is that the Amp is predominatly a Left speaker when playing music through bluetooth as my phone (iPhone 6S) thinks my amp is bluetooth headphones rather than speaker (as the headphone icon pops up on the top right). 

My amp is on the latest firmware update.

Is there any fix for this? There's nothing in the gateway app for audio balencing

Can I use my iPad too update firmware for code 25 .

Dear Marshall-Team,

just bought a code 25. I wanted to pair the code 25 with my IPhone X and the gateway app, but it doesn´t work.

The Phone is connected to the code 25 via bluetooth, but the gateway app is installed successfully, but doesn´t recognise the code 25 to pair.

I´ve already tried all recommended troubleshootings without success.

Could you please give me any further help.

Thank you in advance.

Kind regards

Oliver

The first issue was no bluetooth communication with my Ipad. I now use a Kindle fire and it's working great. Now I will be playing a preset and the volume drops out to almost nothing. Has anybody discovered a fix? This is a Code 25 I really want to love this amp because when it works it's great. The problems it has are making me fall out of love fast. I expected a lot more from Marshall, I have almost all Yamaha product and never have problems.

Hi all,

Along with a number of people on here it seems, I am having trouble with the Marshall Gateway App, which won't seem to connect to my Code 50 amp.

It worked first time round when I set it up, but now, a couple of weeks later, it won't connect. The phone says its connected and I can play music through it (when playing You Tube it comes out of the amp) but the gateway app says its not connected.

Unlike a few people on here, I can scan for amps and click the connect button, but with my phone sat on the amp, it just says 'connecting..." forever and ever and it doesn't. Why??!!

I've tried unconnecting and reconnecting the app on my phone as is recommended and switching the amp on and off but no joy.

Can anyone help and has anybody else had the same problem and managed to fix it?

Many thanks 

Craig 

Why is my code 25 so glitchy?   I updated it some time back and I still spend a inordinate amount of time putzing around with this thing to get it connected to my iPad. You want this piece of crap back?