A preamp/boost effect for electric guitars, acoustic guitars or bass guitars. This is a true interpretation of the Boss FA-1 FET with JHS enhancement. In addition, it is equipped with a simple and effective equalizer. The effect is ideal for building distorted pedals, but its true charm lies in "kicking" the tupbe amplifier into its natural overdrive. The equalizer can then be adjusted precisely according to the amplifier's natural response. Controlled with Volume, Bass, Middle, Treble and with the rotary switch for three equalizer modes. In addition, it includes side DIP switches for low cut and ground lift. The effect is true bypass, it is equipped with a robust metal construction and is powered by a 9 V adapter (not included).