Digital expander / mainframe

When connected to a ConVertor E1, the MIDVertor E1 expands the ConVertor E1 functionality with MIDI output (from audio), sustain pedal to freeze pitch, and ENV, remote preset switching, synced arpeggiation and global transposition of MIDI notes and MIDI merging from up to 7 ConVertors for polyphonic operation.
If its connected ConVertors are in VCO/DCO mode, a user can input MIDI notes from an external MIDI keyboard to play the ConVertor's synths like a MIDI controlled synth. If a group of ConVertors are connected, the external MIDI will distribute the MIDI commands to the ConVertors in a round robin fashion, behaving as a polyphonic synth while translating MIDI to CV outputs as well.

Up to 7 ConVertor E1's can be connected to one MIDVertor E1 to form one big E1 system.

https://sonicsmith.com/products/midvertor-e1/