· Always thinking of their fat-stringed brethren · Tech21 had to make a 3-channel · programmable · rig-in-a-box for bassists who can't get enough of a great thing. Like the TRI-A.C. for guitar · you get three hot tones right at your toetips. The all-analog circuitry features the same controls as its single channel predecessor: drive · bass · treble · presence · blend and level. Digital only in its programmability · you just tweak the knobs until you find a tone · double-tap on a footswitch · and it's saved in that channel. It's that simple. Three of your faves - to go!