The AJH Synth Ring SM is three modules in one: a ring modulator based on an analog transistor core design, a sub bass generator that creates tones 1 and 2 octaves down which morph from a trapezoidal wave (a softened square) in the lowest registers to a sine-like wave in the higher registers (so its harmonics don’t compete too much with the original sound), and a 5 input mixer based on the classic Moog CP-3 design. This mixer is used to combine the original inputs, ring modular, and sub bass sounds; you can override them by patching in alternate inputs. The inclusion of an integrated mixer will occasionally leave you saying “Why can’t I hear this? Why am I hearing that instead?” until you get used to changing its levels as you move between different processings, but in the end it allows you to create a much thicker, complex sound with just one module.

My Learning Modular Synthesis: Eurorack Expansion course covers all three of these sections. The bonus preview movie below focuses on using the ring modulator section, showing a few different applications (including processing a sawtooth from the Moog Mother-32 with a sine wave from the Expert Sleepers Disting) as well as really focusing on the waveforms and harmonic spectra it creates so that you better understand how a ring modulator works:


This is the last of the free-to-all preview movies from the Eurorack Expansion course. But that doesn’t mean there will be no more movies; I plan to keep covering additional modules in the future. At least the overview videos for each module will be released on YouTube; Learning Modular Patreon supporters will also get access to additional movies as well as additional information about the modules including patching tips and more. Your support through Patreon makes it possible for me to afford to keep acquiring modules and creating videos – thank you in advance for your potential patronage.