MI Audio Boost 'n' Buff v.3:
The MI Audio Boost 'n' Buff v.3 is a booster and buffer pedal that should be an essential on every pedal board, whether to keep your original guitar tone intact or to boost the signal in one of three different ways: Full-boost, Treble-boost, or Mid-boost.
Huge 35 db boost range
Ultra quiet, Class A (single transistor) design
In bypass mode, it's an ultra high input impedance buffer (5 Meg!)
Three function booster Mode switch: Full, Treble, Mid