The Xotic Custom Shop BB Preamp Comp is a limited edition release of the much-beloved Xotic BB Preamp. Coming in a shiny metal chassis, as opposed to the typical matte orange, the Custom Shop model offers up the same warm boost and preamp powers using Gain, Treble, Volume, and Bass knobs. Precision shape your tone to get a little bump in treble or bass frequencies or push your amp into a creamy overdrive -- there's even a three-way compression switch, giving you the option to choose between normal compression, high compression, or no compression.