Hi there, I’m completely new to using pedals and I was wondering if I have an issue with the pedal I just bought, or if I’m just doing something wrong, so I know whether or not to send for a replacement.

My setup is Guitar > Metal Muff > Blackstar HT Studio 20

Essentially what my issue is, is that when using the distortion pedal on the clean channels, the sound seems a bit weird. It sounds almost as if the volume is very subtly changing. The difference is quite small but still kinda annoying.

When I use it with my amps overdrive channel, the sound is awful. It’s like the ‘distortion’ part of the sound is cutting out. I can’t really describe it other than it doesn’t sound right.

I realise this description isn’t the easiest to work with but I’m curious if my lack of knowledge is the issue here or the pedal.

Thanks!