Fishman Prefix Plus-T Onboard Preamp, Wide Format Volume control as well as bass, treble, brilliancecontrol, and a wide-range semi-parametricEQ to isolate certain frequencies andboost or cut them as needed Feedback-fighting notch filter and phase switch Onboard chromatic tuner can be used withoutplugging in the guitar Brilliance slider System includes an Acoustic MatrixUndersaddle Pickup and Switchjack StereoEndpin Jack Volume control as well as bass, treble, brilliance control, and a wide-range semi-parametric EQ to isolate certain frequencies Feedback-fighting notch filter and phase switch Onboard chromatic tuner can be used without plugging in the guitar Brilliance slider System includes an Acoustic Matrix Undersaddle Pickup and Switchjack Stereo Endpin Jack