all in good state, the ms2000/ms2000r provides four types of filter: two types of low pass filter (-12/-24 db), band pass filter, and high pass filter. resonance is provided, and can be adjusted into self-oscillation. the effect section provides a modulation effect (three types), a delay with three selectable types, and an equalizer. in addition to volume and pan controls, the amp section provides a distortion on/off setting so that even soft sounds can be transformed into aggressive solo parts.