The Clover preamp pedal is a recreation of the Boss FA-1 FET preamp made famous by The Edge of U2. It had a short run in the early 80s and was designed as a portable pre-amp you could take anywhere. The Clover has the same circuitry as the original, giving your tone an uncompressed natural boost with EQ controlIts great for whatever style of music you play. It can boost distortion and overdrive, send a tube amp into a full-on crunch, gives single-coil pickups depth and punch, and gives humbuckers a clearer, biting tone.It has 5 control knobs - Volume simply controls output volume, then there are three EQ controls that let you cut or boost the Bass, Middle, and Treble, and theres also a 3-way rotary switch which has Full EQ mode, letting you adjust all three to give you full control over your sound, the No Mids mode replicates the FA-1 itself, and No EQ mode which makes the pedal work as a FET boost.Theres a Low Cut dip switch on the right side of the pedal that lets you get rid of t