LVL is a professional low-gain device, which achieves overdrive gain ranges with a new and unique circuit. A combination of light clipping and op-amp push gives the pedal a unique sound and gain structure. It works great on bass, which is what FULL-RANGE refers to. It also stacks with anything, makes most fuzz better if you put it after, makes most overdrives better if you put it before. It’s also great if you hit the front end with a little boost! 1981 Inventions second official release, after the DRV.