Behringer TD-3-MO-AM Analog Bass Synthesizer - Yellow

The Behringer TD-3-MO-AM is a modified version of the already faithful TD-3 analog bass synthesizer — a circuit-level recreation of the legendary machine that gave acid house its voice. The all-analog signal path runs from a single VCO through transistor wave-shaping circuitry into a 4-pole resonant voltage-controlled filter, and the result is unmistakable: fat, rubbery bass tones that bloom into screaming resonant squelches as you sweep the cutoff. The MO-AM modifications push this further, altering the filter and oscillator circuits to unlock more extreme sonic territory — deeper self-oscillation, wilder resonance peaks, and overtone character that the stock unit keeps buttoned up. The built-in overdrive adds analog saturation directly in the signal chain, ranging from gentle tube-like warmth to snarling distortion that cuts through any mix.

The 16-step sequencer is the creative engine here, letting you punch in classic acid patterns with accent and slide per step — the essential ingredients for those bubbling, evolving bass lines. The arpeggiator adds another layer of real-time pattern generation, and MIDI sync via USB or traditional MIDI keeps everything locked to your DAW or external hardware. Poly Chain capability means multiple units can be linked for polyphonic bass duties, though most producers will use this as the monophonic acid machine it was born to be. The compact metal chassis is road-worthy and pedalboard-friendly, and the yellow finish makes it easy to spot on a crowded studio desk. For the price of a mid-range plugin bundle, the TD-3-MO-AM puts genuine analog synthesis with expanded modded character directly under your fingers.