Mayer Electronic Music Instruments intros MD900 Desktop Synthesizer and M800-R2 Eurorack Synthesizer


Mayer Electronic Music Instruments has introduced the MD900, a multitimbral polyphonic desktop synthesizer.


The MD900 offers polyphony of 16 voices, shared by the 4 multi-timbral parts. Each of the 4 parts have their own effect stack (with flanger, chorus, vibrato, reverb, delay and other options).


The heart of the voice are the two aliasing-free oscillators (OSC1,OSC2). The oscillators have two different modes: Wavetable- or Algorithm-oscillator. Each of them can run in 4 instances with detuning capabilities and spread in the stereo channels in a different way. The Noise is a sample based oscillator which can be restarted with the Note-On, run free with fix pitch or follow the Note-On pitch.


All oscillator outputs are stereo. These stereo outputs will feed in the mixer section. The output of the mixer has two paths which are the input for both stereo multimode filters (A/B). Both filter outputs feed the amps (A/B) and final these stereo outputs feed the effect stack.




  • The overall audio path is stereo. The oscillator, mixer filter, amps and effects are all in stereo.
  • Four independent arpeggiator und step sequenzer assigned to each of the four synth parts. The trigger sequencer may trigger the built in transient sample player (Drum Kit .wav) or send triggers to MIDI-Out (USB-DIN or USB-MIDI)
  • The housing is made of aluminum with real walnut wood on the front and back.
  • All components are industrial grade. Precision potentiometers with aluminum covered knobs.
  • Four independent arpeggiators
  • Step sequencer assigned to each of the four synth parts.
  • The trigger sequencer may trigger the built-in transient sample player (Drum Kit .wav) or send triggers to MIDI-Out (USB-DIN or USB-MIDI)



The MD900 XVA engine is also patch compatible with the new M800-R2 Eurorack synthesizer.


The Mayer M800-R2 is an extended Virtual Analog [XVA] eurorack polyphonic synthesizer module.


It’s essentially a Euro format version of the MD900, and patches can be shared between the two.


Details on both synths are available at the Mayer-EMI website.

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