Hi Bobby,

the hum should not be heard while playing, if you are getting a hum and can hear it while playing, please could you forward us some more information or a video to servicedesk@marshall.com

Marshall Support

I get hum if I am standing in the right place, but that's not the amp's fault. It's just electrical interference from wifi, LED lights, and whatever else, being picked up by the guitar which can act as a big antenna. Try moving the amp or guitar to a different location and see if that makes a difference. Alternatively, increase the gait level, some settings are just amped (ha!) so high that they will pick up anything.