The FISHMAN Model G preamps are specifically designed for use with piezoelectric pickups. Since piezoelectric pickups require specific electrical environments, the Model G feature discrete input stages that maximize the full potential of piezoelectric pickups. Both units provide active gain and active boost and cut for Bass and Treble. The center frequencies of these controls have been selected for their relationship with acoustic instruments. The tone controls are shelving style. The width of the Bass and Treble separation effectively provides a midrange control; boosting the Bass and Treble controls will simultaneously provide an effective midrange cut or vice-versa. The preamp housing is made of rugged aluminum and weighs only seven ounces. For maximum portability and user convenience, it is equipped with a heavy duty stainless steel belt clip and four little black rubber feet.