So today I went to guitar center to get a new pedal and I was in love wih the Friedman Brown Eye OD pedal. It sounded amazing in store so I bought it and took it home. I plug it in set it all up and I turn it on and it just blasts insane feedback. Nothing I do can help. I know od pedals have more noise than amps, but this is too much. Even with my guitars volume at 0 it’s still really loud and hissing. Also the volume and gain on the pedal seem to do nothing. As well as the other knobs. But I know the pedal itself is working because it sounds slightly different than the amp on its regular metal setting. Slightly. Any help with this? I can’t use it at a decent volume because it’s just too much noise