The Power Booster is designed to be a differentiated booster pedal that could be used both as gain booster and volume booster, and to be even more perfect in its setup, two stages of equalization, one control for the bass and another Control for the treble, in addition to the Clean / Dirt key that will open a universe of sonorities.more
The Fire Power Booster it's a very well build and packed pedal with a simple but gourgeous design and fine components. The FPB has a clean/dirty switch but will not give you any kind of drive or crunch, it can be used as booster for gain and volume as well with 30db of boost, and also has controls to adjust treble and bass. It can work with 9, 12 and 18v and it's extremely silent and solid. As a clean booster this pedal does it's job very well but since his "dirty" option is barely noticeable, the FPB it's kind of a one trick pony to me. If you're looking for an straight clean boost pedal with an good cost benefit ratio, the Fire Power Booster it's an great option for sure.