Developer Andrew John March – who last year ran a crowd-funding campaign for his MOSS-101 synthesizer – has announced that he plans to introduce three new synthesizers in his M0SS line of compact synths:
- The M0SS-201 is a ‘West Coast’ synth, which takes some inspiration from the Buchla Easel. March says that the monosynth is “packed with features that will inspire experimentation into advanced synthesis”. It includes a custom generative random sequencer, a complex oscillator, and an eight-stage wavefolder.
- The M0SS-309 is a hybrid of some classic polysynths from the 70s and 80s. It features 9 voices of polyphony, with 2 oscillators, a resonant filter and 2 envelopes per voice. Advanced features like FM and hard sync open up a huge pallet of textures. It also offers a suite of master FX, including chorus, reverb and delay.
- The M0SS-416 is a 6 operator FM synth, based on the Yamaha DX7. Unlike the DX7, the M0SS-416 has a labeled physical interface for each parameter, so you can design or modify sounds in real time without ever looking at a screen or diving through a menu system. It is fully compatible with DX7 .sys files, so you can load any DX7 patch you might have in your collection using the included internal SD card, or over MIDI SYSEX.
The line of instruments is designed to pack the power of an advanced synth into a tiny, rugged enclosure. while maintaining immediacy and ease of programming.
Pricing and Availability:
March plans to fund production of the new synths via a Kickstarter project, which will be launching ‘soon’. Details are still to come.

WOW these look interesting.
– I hope they don’t come with typical Eurorack price-tags ^_^
Nice to see some creativity and innovation in the synth space. Just might back this cause it’s cute. 🙂
These look really cool. 416 could easily be a pocket replacement for a DX7.
Agree look like tidy little modules of fun ^_^
I hope they don’t expect the typical Eurorack price $pricetags -_-
Wow, these compact mini synths are going to blaze the future I suspect.
Well Done Andrew!!!
Look cool
I bought a M0SS-101 monosynth (just $165 US including shipping) because I’ve enjoyed Andrew’s earlier WVR sample-player boards so much. (They’re inside two of my DIY instruments, SoundBite and BirdonGaku.)
Andrew is a prince of tech support and brilliant at miniaturization. The 101 is the size of a guitar pedal yet can power a USB MIDI controller and “thru” data to the TRS MIDI output. There’s only one knob, but the synth is almost one button per function — tap *A,* for example, then turn the knob to set the attack time. Most of the functions are MIDI-controllable. I found it quick to make and store patches, and the sound quality was pleasing.
The 101 also runs from a standard 9V stompbox power supply and has a quarter-inch mono output, so it’s becoming friends with my guitar pedals.