Check out this used Tech 21 Sans Amp Programmable Bass Driver DI. This pedal has been tested and works good. The pedal has velcro on the back and some wear, but overall looks good
Always thinking of our fat-stringed brethren, we 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!