Pricing and availability
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Average Price: $222
Budget/Beginner
$500
$1501+
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Price History
Based on price data from 4 merchants for "Behringer TD-3-MO-SR Analog Bass Line Synthesizer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Get ready to unleash your creativity with the Behringer TD-3-MO-SR Analog Bass Line Synthesizer. This unique instrument brings back the classic sounds that shaped the world of electronic music, while adding a modern twist with a host of new modifications.
It's an authentic interpretation of its famous predecessor, boasting an all-analog signal path and a 16-step sequencer. The transistor wave-shaping circuitry gives it a distinctive character, delivering those fat, juicy bass sounds that defined the electro-funk, acid, techno, and house genres. But that's not all - the TD-3-MO also includes a built-in arpeggiator and a 4-pole resonant lowpass filter, perfect for creating those squelchy, grimy grooves that are sure to get your audience moving.
The real magic, however, lies in its modifications. These enhancements, inspired by the modder community, elevate the TD-3-MO's capabilities to a whole new level. You can control the filter with MIDI C/C, adjust the slide time, switch between 3 sweep speeds, and add a sub-oscillator for extra depth. There's also a gnarly overdrive and a post-VCA "muffler" distortion circuit, taking the aggression up a notch.
Whether you're a seasoned producer or a sound designer in the making, the Behringer TD-3-MO-SR is a powerful tool for sonic exploration.
Key Features:
- A "modded-out" interpretation of an iconic bass synth module
- Single oscillator with switchable sawtooth and square waveforms
- All-analog VCO, VCF, VCA signal path design based on legendary designs
- 4-pole resonant filter to twist and morph your sounds
- Powerful programmability, with a 16-step sequencer featuring 7 tracks and 250 user pattern slots
- Add depth and dimension to your patterns with programmable accents, slides, filter FM, sub-oscillator, overdrive, and real-time parameter manipulation
- Link multiple modules over Poly Chain for up to 16-voice polyphony
Product specs
| Type | Bass Synthesizer with Sequencer |
| Pads | 13 x Key buttons |
| Other Controllers | Tempo Knob, Track Pattern Group Knob, Mode Knob, Volume Knob |
| Sounds | Sawtooth/Pulse Waveforms with Cutoff and Resonance Controls |
| Presets | 250 x User Patterns |
| Polyphony | Monophonic, 16-voice Poly Chain |
| Sequencer | 16-step, 7-track |
| Effects | Filter, Overdrive |
| Analog Inputs | 1 x 1/8" TS (filter in) |
| Analog Outputs | 1 x 1/4", 1 x 1/8" (filter out) |
| Headphones | 1 x 1/8" |
| MIDI I/O | In, Out/Thru, USB |
| Other I/O | CV in/out, Gate in/out, Filter FM in, Filter CV in, Accent in/out, Slide in, Sync in |
| USB | 1 x Type B |
| Software | Synthtribe app |
| OS Requirements - Mac | OS X 10.6.8 or later |
| OS Requirements - PC | Windows 7 or later |
| Power Source | 9V DC power supply (included) |
| Height | 2.2" |
| Width | 12" |
| Depth | 6.5" |
| Weight | 2.0 lbs. |
FAQs
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What is the difference between the Behringer TD-3-MO-SR and the standard TD-3?
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The TD-3-MO-SR features a new sub-harmonics oscillator for enhanced low-end and expanded sound capabilities, along with analog slide circuitry for smoother note transitions, distinguishing it from the standard TD-3.
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Is the Behringer TD-3-MO-SR suitable for live performances?
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Yes, the TD-3-MO-SR is designed for live use with a 16-step sequencer, 7-track capability, and robust controls for real-time performance adjustments.
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Can the Behringer TD-3-MO-SR be used with a computer?
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Yes, the TD-3-MO-SR connects to a computer via USB and is a class-compliant MIDI device, requiring no additional drivers, making it easily integrable with most DAWs.
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What kind of power supply does the Behringer TD-3-MO-SR require?
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The TD-3-MO-SR operates on a 9V DC power supply, which is included with the synthesizer.
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How many user patterns can the Behringer TD-3-MO-SR store?
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The TD-3-MO-SR can store up to 250 user patterns, allowing for extensive pattern creation and recall.
Videos
Thomann Synthesizers
Behringer TD-3 MO | Overview & Tutorial | Thomann
Reviews
PROS
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Vintage gear with a modern touch enhances the classic experience
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Excellent CV interconnectivity for expansive modular setups
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Close to Devilfish sound at 95% authenticity
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Modded version adds interesting modulation and distortion
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Authentic TB-303 clone sound, evoking nostalgia with a twist
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Great value for an authentic-sounding and fun device
CONS
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Original sequencer design feels outdated and cumbersome
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Needs external effects for optimal sound quality
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Initial sound may seem weird or disappointing without adjustments
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Sequencer improvements desired for modern usability
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Behringer TD-3-MO-SR Analog Bass Line Synthesizer.
Comparisons
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The Behringer Model D and Crave are suggested as better alternatives for those seeking lower cost options with potentially better quality and ease of use.
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The TD-3-MO's filter frequency is controllable via MIDI, providing an eerily-organic sound similar to Herbie Hancock's "Watermelon Man."
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The Behringer TD-3-MO-SR is preferred over the Roland TB-3 and RE-303 for its price and similar sound to the original 303.
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Software and compatibility
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Recording into a DAW like Ableton is straightforward with proper audio interface setup, allowing for seamless integration into digital production.
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Use cases and applications
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The TD-3-MO is praised for its ability to serve as a gritty and raw-sounding monosynth, suitable for varied musical contexts beyond acid house.
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Combining a TD-3 with a Korg Volca Beats drum machine is recommended for creating techno music affordably.
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It's noted that Carl Cox uses the TD-3 on stage due to its affordability and sound quality, despite its basic build.
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Mods and upgrades
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Owners have utilized Jakob Korn's mods for essential enhancements, particularly on the TD-3, to extend its capabilities.
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User experience
Features and functionality
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The TD-3-MO-AM offers additional attack/decay controls and FM control for added texture, enhancing its versatility beyond the standard TD-3.
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Some users suggest avoiding the built-in sequencer, recommending the Bassliner app for a more enjoyable experience.
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Some find the TD-3 complex and suggest it might not be the best choice for beginners due to its non-intuitive interface.
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Value and pricing
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The TD-3 is praised for its affordability, making it a reasonable gift choice without breaking the bank, especially when compared to more expensive synths.
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New TD-3 units can retail for about $100 in some regions, but prices vary significantly, with some users finding new units for as low as 60 euros.
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Build quality
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Some users report that the LEDs shine through the case, giving it a toy-like appearance, especially in the MO version.
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Artist usage
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In the music video for "End Of Summer" from 2025 you can see among other devices the Behringer TD-3-MO in silver finish (NOT the standard TD-3!)
Album Usage
The Behringer TD-3-MO-SR Analog Bass Line Synthesizer has been featured on the following albums:
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Behringer TD-3-MO-SR Analog Bass Line Synthesizer, it is most commonly used with the following gear.
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