MFOS – Ultimate + Expander

April 16, 2010 Thalassa MFOS, Modular, Test, Thalassa 0


This is part of a personal project that I’ve been working over last few weeks. It’s a MFOS Ultimate + Expander , semi-modular analog synthesizer. This video shows only the main characteristics ( even not all ) of this powerful synth, I will make more videos showing more complex and interesting sounds. Thanks to Ray Wilson for make this project available 🙂


MFOS Ultimate + Expander – Overview

Text from the video :

  • The MFOS Ultimate is a DIY project. It’s a semi-modular analog synthesizer with 3 VCOs, 2LFOS , one AR envelope , one VCA , Sample and Hold and one Low Pass filter ( 12db/oct ) and more…

    The synth has a pre-wired signal and audio path but also has a lot of patch points that allow the user to create very complex sounds.

    To expand de synth , MFOS has designed the Ultimate Expander, that adds new features not presented on the Ultimate synth :

    • ADSR envelope
    • Multimode filter with Low pass, Band Pass and High Pass response
    • Ring Modulator
    • CV interter
    • Envelope Follower
    • 4 channel mixer
    • Another VCA

    This video shows only the main characteristics of this powerful synth, I will make more videos showing more complex and interesting sounds.

Source :

More info about MFOS Ultimate + Expander :

Buy :