DigiTech invented multi-effects in 1988 with the DSP-128 and has been the leader ever since. The BP90 is DigiTech's newest induction in their line of bass multi-effects. The BP90 features 27 effects, 11 amps, 5 cabinets, and 5 stompboxes. Placing any tone right at your feet, the BP90 features 100 presets locations (50 user and 50 factory). The BP90 also features 40 high-quality drum patterns to practice with while adding a built-in chromatic tuner and headphone jack for silent practicing. A built-in expression pedal gives you real time control over wah, volume, and DigiTech Whammy effects.