Acoustic & Electronic Instruments, Musicians, News, Tutorials, Videos & Interesting Finds
Acoustic & Electronic Instruments, Musicians, News, Tutorials, Videos & Interesting Finds

Behringer TD-3-MO-BK analog bass line synth released

Behringer has announced its TD-3-MO-BK analog bass synthesiser with VCO, MIDI-controllable VCF and sub-harmonics oscillator. Not the most catchy name for a product which is seeking to emulate the Roland TB-303 but there we go. Behringer thinks this could become one of your favourite synths, thanks to its pure analog signal path, 16-step sequencer, and authentic VCO, VCF and VCA filters.

Great care has been taken in engineering the TD-3-MO-BK, including the true to the original VCO, VCF and VCA designs and pure analog circuitry with matched transistors. This highly-focused attention to detail is what gives TD-3-MO-BK its ultra-flexible sound shaping capability.

Out of the box, its default signal routing doesn’t require any patch cabling to instantly create amazing sounds. An intuitive layout lets you easily create the ’80s and ’90s, EDM and synth-pop sounds and more.

The TD-3-MO-BK includes an ultra-flexible sawtooth and square waveform Voltage Controlled Oscillator (VCO) that can be tuned, shaped and even overdriven just the way you want. The amazing 4-pole low-pass resonant filter has controls for cutoff, resonance, envelope, decay and accent that you can adjust and tweak to add tension and spice to your songs. When you want to go even lower, you can tap the Sub Oscillator button giving you an extra octave, more low end and a deeper sound.

The TD-3-MO-BK is a “modded out” version of the original TD-3, with new features including MIDI CC controllable filter,  variable slide time control, three-mode Sweep Speed switch, Accent Sweep Switch, a Soft Attack control and more.

While it is a monophonic instrument, the TD-3-MO-BK’s 16-note Poly Chain function lets you combine multiple synthesizers for up to 16-voice polyphony – plus provides vastly improved reliability and stability over its 1970s and ’80s predecessors.


Synthesizer Architecture

Number of voicesMonophonic


Power input DC input connector
Power switchPush button on/off
MIDI In/ThruMIDI In and MIDI Thru, 5-pin DIN
USB (MIDI)USB 2.0, type B
OutputsLine output: 1/4″ TRS, unbalanced, max. +8 dBu
Output impedance1.5 k?
Headphones3.5 mm TRS, max. 50 mW/32 ? (1 KHz, 1% THD)
Headphones output impedance15 ?


TypeClass compliant USB 2.0, type B
Supported Operating SystemsWindows 7 or higherMac OS X 10.6.8 or higher

Inputs and Outputs (TS 3.5 mm)

InputsFilter in: -6 V to +6 VFilter FM in: 0 V to +12 VFilter CV in: 0 V to +12 VAccent in: off: 0 V, on: +12 VSlide in: off: 0 V, on: +3.3 VGate in: off: 0 V, on: +3.3 VCV in: +1 V to +5 VSync in: more than 2.5 V
OutputsAccent out: off: 0 V, on: +6 VGate out: off: 0 V, on: +12 VCV out: +1 V to +5 V (1 volt/oct)Filter out: -400 mV to +400 mV

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