So I’ve been jamming on my Mark 3c+ lately and there is a weird buzz that won’t go away. I don’t know how to describe it other than it sounds like a grounding hun/buzz. I’ve tried the ground switch on the back and didn’t notice a difference, tried different plugs on the house and multiple houses so I’m pretty sure it’s not “dirty electricity”. Then the amp just seems to have no “tone” I don’t know what it is also when I’m on the lead channel it just seems that there is a lot more noise then there should be, the lead gain is only on 6,7 maybe 8 and the low end on the lead channel just sounds like a grumbly mess. So I’m thinking of switching some preamp tunes in to see what happens, but can any get what I’m describing or anything I can look into?