Static/Digital Artifacting With USB Connection from Code25


I'm experiencing unwanted noise when connecting my Code25 via USB to my iMac.  I've tried several different USB cables and I'm using GarageBand, making sure to turn off all plugins and no other applications are running. I've seen mention of the same issue on other forums. I've created an audio file with a sample of the unwanted noise.

Is this a known issue, if so, can it be corrected in a future firmware update?

asked 12 Jun 2016 at 02:06 PM

Chris Conte (13)
Answers: 2


We are aware of this issue and a firmware update will be available soon.

answered 13 Jun 2016 at 01:02 PM

Chris Robinson (338)
Excellent, Thank you. Where are firmware updates announced? - Chris Conte 14 Jun 2016 at 06:38 PM
We will aim to update you here, on the Marshall website and via social media. - Chris Robinson 17 Jun 2016 at 12:18 PM
I am having the same issue using Ableton Live 9. Same distortion on every channel. I updated the firmware and everything is up to date. - Christopher Cox 17 Sep 2016 at 08:46 PM
same problem with cubase - Massimo Romagnani 07 Nov 2016 at 09:21 AM


I upgraded to firmware 1.1 and I still get the noise and USB recording artifacts.

Not when saving a preset, but when switching presets...

answered 06 Nov 2016 at 09:45 AM

alex newman (1)
Hello Alex,
Could you please send a recording of the noise you are hearing when recording to so we can investigate for you?
- Marshall Amplification 07 Nov 2016 at 10:16 AM
Loading - please wait...
This site uses cookies to improve your experience. By continuing we assume that you're ok for us to store cookies on your device. You can change your cookie settings at any time, or delete cookies, by going to our cookie consent page.