Blackstar Artist 10 AE hum

[Codyg]

I recenly purchased a new blackstar artist 10 aniversary edition. There is a constant hum as long as a instrument cable is plugged in. The cable does not...

[ozymandias]

I’m hoping one of you kind souls on here can help me out with a problem with this amp. My experience of working on amps is very limited, but so is my budget...