yup, a metal zone. According to the seller this is modded to mimic the wampler triple wreck pretty closely. here's a demo I made of the pedal: I mostly played with it on the clean and crunch channels of my f30, though it definitely added some tightness to the heavy channel. I had success using it as a tubescreamer facsimile on the crunch/heavy channels and as a light overdrive on the clean channels. It's a noisy pedal, but it doesn't sound like a metalzone as far as I'm concerned. It definitely adds some thickness to the sound though. I think it sounds best on the crunch/heavy channels, though I was pleasantly surprised by it actually being usable on the clean channel. All settings on the amp are at noon except for volume (since that would be ear rapingly loud even with earplugs). Overall I really like it, it's actually useful now, unlike when I had an unmodded mt2 years ago.