Unleash the power.

  • Innovative multiband resonant filter​.​
  • Officially licensed by 4ms​.​
  • Includes 75 new presets.​



Made for Modular

Softube's Eurorack platform. Learn more

Modular exclusive

4ms SMR

USD 25 USD 49


A deeply useable and versatile module by USA West Coast synth specialists 4ms, the Spectral Multiband Resonator (SMR) for Softube Modular can process audio like a classic filter bank, ring like a marimba when plucked/struck, vocode, re-mix tracks, harmonize, output spectral data, quantize other oscillators to scales and much more. It's colourful, complex, and musical, infinitely expanding what is possible to achieve with Modular.


"The new 4ms Spectral Multiband Resonator has a beautiful, versatile, sometimes additive sound. Love it most when its six bands self resonate and the frequencies travel around circular scale settings. Truly original and wonderful, with so much left to explore."

Ed Handley and Andy Turner a.k.a. Plaid
Electronic artists

Have a listen

Six Band Innovative
Multiband Resonant Filter

The 4ms SMR consists of six channels of resonant bandpass filters, all individually locked to a twenty-note scale displayed in the centre of the unit via the LED ring.


Get Swept Away

All six filters can easily be swept around their present note scale manually or via CV. The scales include Western scales, alternative tunings, and more esoteric Gamelan and microtonal scales.


Endless fun!

Use SMR as an oscillator bank for additive synthesis. Create beautiful moving chord structures. Use it as a vocoder, phaser, quantizer, as a stereo-widener thingy, a CV source/arpeggiator/sequencer.

SMR can be a remix tool for extracting triggers from recorded material. It can be a drum synthesizer — pulse triggering odd and even for different rhythms. It can even be a basis for multiband compressor patches, or just a crazy-ass effect.


Not at all! The 4ms SMR comes with 75 brand new presets which cover these use cases. Great starting points for further patch-o-rama! Oh, and its CPU usage is comparatively low, so you can add a large number of SMR units to your patches.

Officially endorsed

Softube's 4ms Spectral Multiband Resonator software module is officially endorsed by 4ms. It faithfully emulates both the hardware and firmware of the original unit, with some minor alterations and improvements. Learn more about the original hardware module

In short

  • Made for Modular, Softube's Eurorack platform. Learn more about Modular
  • Officially licensed and endorsed by 4ms
  • Innovative multiband resonant filter
  • Wide range of uses
  • Includes 75 new presets
  • Low CPU usage


  • System requirements

    • Monterey 12, Ventura 13, Sonoma 14
    • Windows 10 (64-bit), Windows 11
    • Softube account
    • iLok account
    • Computer with AU, VST, VST3 and/or AAX compatible DAW host software
    • Internet access (for downloading installers and managing licenses)

    Read full System Requirements and our Terms and Conditions 

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