Suhr Koko Boost This is a booster pedal by Suhr. It's a boost pedal that allows you to select between a CLEAN BOOST, which faithfully boosts the volume of the original sound, and a MID BOOST, which boosts the delicious mid-range frequencies of the guitar. It also excels as a buffer/preamp. The way it enhances the mids supports the parts of the sound that need to cut through, such as riffs and solos, making it a great effect pedal not only for electric guitars but also for acoustic guitars. I really liked it, but I'm putting it up for sale. Bulk purchases are welcome. Thank you.