Okay, I have no idea of the name of what I'm talking about, so there's no real way to search for it. Here goes: I'd love to have a pedal that is a single channel fully parametric EQ, with the bandwidth permanently set at a really narrow setting, so I could isolate big notes in a room coming from my bass and kill them. Does such a beast exist? And don't tell me to have the sound guy do it - at my regular gig there IS no "sound guy", and a pedestrian board at best. I need to regain control of my F# notes without losing all my low end!