Marshall M-Button

At the heart of the Marshall London is the M-Button.

(PLEASE NOTE! This app only works on the Marshall London with it's custom hardware)

At the heart of the Marshall London is the M-Button.

Your dedicated one-click access to Music, the London's global equalizer, Marshall community and much more. Thanks to this ingenious bit of engineering, you can control your local or streaming music on top of whatever else you happen to have on your screen.

Use the M-Button to control the global equalizer that is unique to the London. Use one of the pre-loaded profiles or adjust the sound to your liking and save it as a custom profile. The London Equalizer will apply your selected profile to whichever music player you use to get that authentic Marshall sound.

The Marshall community will keep you up to date with news about the music industry and artists who collaborate with Marshall.

This app is only compatible with Marshall London devices.