Behringer

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

4.5 (682 reviews)

True analog bass synthesizer with classic VCO/VCF circuitry, 16-step sequencer, and built-in distortion in a bold Acid Yellow finish.

$149.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Behringer TD-3-AM Analog Bass Line Synthesizer is a faithful recreation of one of the most iconic bass synthesizers in electronic music history, built with true analog circuitry and matched transistors to deliver the squelchy, resonant bass lines that defined acid house and techno. Its signal path runs through a sawtooth/square waveform VCO with transistor wave-shaping, into a 4-pole low-pass resonant filter with dedicated controls for cutoff, resonance, envelope modulation, decay, and accent. The result is a hands-on sound design experience where every knob twist produces immediate, tactile changes to the output — from deep, rolling sub-bass to screaming, overdriven acid leads when the resonance and built-in DS-1-style distortion are pushed.

Beyond raw sound, the TD-3-AM is a self-contained groove machine. Its 16-step sequencer supports 7 tracks with 250 user patterns each, making it easy to program, store, and recall sequences for live sets or studio sessions. The onboard arpeggiator expands creative possibilities with wide pattern options, and the 16-voice Poly Chain feature lets you daisy-chain multiple TD-3 units for polyphonic arrangements. With MIDI I/O, USB connectivity, and CV/Gate outputs, the TD-3-AM integrates smoothly into both modern DAW-based workflows and traditional hardware setups. The Acid Yellow finish gives it a distinctive visual presence on any setup.

Key Features

Amazing Bass Line synthesizer with true analog circuitry for bass and groove sounds

Authentic reproduction of original circuitry with matched transistors

Pure analog signal path based on legendary VCO, VCF, and VCA designs

Sawtooth and square waveform VCO with transistor wave-shaping circuitry

Amazing 4-pole low-pass resonant filter with cut-off, resonance, envelope, decay and accent controls

Specifications

Brand
Behringer
Model
TD-3-AM
Type
Analog Bass Line Synthesizer
Circuitry
True Analog with Matched Transistors
VCO Waveforms
Sawtooth, Square
Filter
4-Pole Low-Pass Resonant
Sequencer
16-Step, 7 Tracks, 250 User Patterns Each
Distortion
DS-1 Modeled Circuitry
Poly Chain
Up to 16 Voices
Controls
11 Controls, 28 Switches
Color
Acid Yellow

Pros & Cons

👍 Pros

  • True analog signal path with matched transistors delivers authentic, warm bass tones
  • Built-in 16-step sequencer with 250 user patterns per track enables standalone pattern creation
  • Integrated DS-1 modeled distortion adds tonal variety without external pedals
  • 16-voice Poly Chain support allows linking multiple units for polyphonic capability
  • Compact form factor takes up minimal desk or stage space

👎 Cons

  • Monophonic by default, requiring multiple units and Poly Chain to play chords
  • Small knobs and tightly spaced controls can be difficult to adjust precisely during live use
  • Limited to sawtooth and square waveforms, offering less timbral variety than multi-waveform synthesizers
  • No built-in speaker or audio interface, requiring external amplification or recording equipment

Frequently Asked Questions

The TD-3-AM uses a pure analog signal path built around a voltage-controlled oscillator (VCO), voltage-controlled filter (VCF), and voltage-controlled amplifier (VCA). It is not digital or virtual analog — all sound generation and shaping is done with analog circuitry using matched transistors.
The 16-step sequencer provides 7 tracks, each capable of holding 250 user-programmed patterns, giving you substantial storage for building and recalling sequences during live performance or studio sessions.
Poly Chain allows you to link up to 16 TD-3 units together to create polyphonic patches. Each connected unit contributes one voice, so chaining multiple units transforms the monophonic bass synth into a multi-voice instrument.
The TD-3-AM includes distortion circuitry modeled after the Boss DS-1 distortion pedal, adding grit and overdrive to the analog signal path without requiring an external effects pedal.
Yes, the TD-3-AM includes MIDI in and MIDI out/thru connections as well as USB, allowing it to integrate with DAWs, external sequencers, and other MIDI-equipped hardware.