Hi,
I just got brand new Marahall 2203X fresh from retailer. It’s got some buzzing/hum problem. It’s not really present with nothing at input, much less audible in low input, more present in high one. Rising with higher master volume and gain. Persisting with different guitars and cables. Doesn’t seem to interfere with playing, also with guitar vol rolled back. I’m just wondering if it’s more of „physiological” hum of hard pushed amp (gain at 10) with steep curve of MV(getting loud really quick), maybe some ground loop/dirty power, sth else? Just looking for some quick troubleshooting. Haven’t changed speaker or spkr cable, havan’t changed socket/power source yet.
https://youtu.be/bcep81e6ERM
Some vid
I just got brand new Marahall 2203X fresh from retailer. It’s got some buzzing/hum problem. It’s not really present with nothing at input, much less audible in low input, more present in high one. Rising with higher master volume and gain. Persisting with different guitars and cables. Doesn’t seem to interfere with playing, also with guitar vol rolled back. I’m just wondering if it’s more of „physiological” hum of hard pushed amp (gain at 10) with steep curve of MV(getting loud really quick), maybe some ground loop/dirty power, sth else? Just looking for some quick troubleshooting. Haven’t changed speaker or spkr cable, havan’t changed socket/power source yet.
https://youtu.be/bcep81e6ERM
Some vid