Superbooth 2018: Humble Audio Quad Operator - Open Ended FM Synth Matrix

US An FM synth with a matrix as opposed to a set number of algorithms      08/05/18

The Humble Audio Quad Operator is an entirely open ended FM synth matrix. This is a four operator FM voice in eurorack form without any preset algorithms, this allows you to create your own algorithms through a aux send style matrix. 

The FM voice is created in software as opposed to using a new old stock yamaha chip for instance which allows the unit to be more similar to something like FM 8 or Ableton Operator. 

The Quad Operator has 4 variable waveshape operators an audio rate modulation input and each operator is available for independent patching.

More info at



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