It's back! The original LPB-1 is the pedal that started it all for Electro Harmonix. This is an exact recreation of the 1968 Linear Power Booster and is ideal for many uses. The LPB-1 is perfect for boosting your signal through a long chain of effects to keep clarity and definition intact. It's also great for boosting your amp into overdrive or sending your guitar out front for searing leads. The Electro Harmonix LPB-1 Linear Power Booster is just that, all boost, all the time.