Behringer TD3 BU Analog Bass Line SynthTD 3 BU Only produced from 1981 to 1984, the Roland TB 303 was a tremendous commercial flop as a replacement for the bass guitar, however it soon found its place as one of the most loved synthesizers for what became known as Electronic Dance Music (EDM). An ultra affordable and faithful homage to the iconic synthesizer that spawned house music, plus an all new Distortion circuit, the TD 3 BU lets you conjure up virtually any sound with incredible