MR Editor

Unlock The Power Of The Ensoniq MR Synth Engine

  • Buy $44.60

The Ensoniq MR series of synthesisers was released in the mid 90s. A rack version and three keyboard versions were produced, all featuring a powerful synth engine able to create complex sounds consisting of up to 16 individual layers. To simplify operation, sounds could not be edited from the hardware, only via a software editor. This editor software allows the sound creation potential of the MR series to be unlocked using a modern computer, either running standalone or in any DAW supporting VST, VST3, AU or AAX plug-in formats.

In addition to editing sounds, this editor features a bank manager for transferring and organising banks of sounds, a full performance editor (MR Rack only), a drum kit sound editor and the ability to send, save and recall insert FX presets and system parameter dumps.

The MR Rack has a number of differences to the keyboard versions and as such we have created a separate editor for it. Both the rack and keyboard versions of this editor are included in the installer and you will be licensed for both on purchase.

The MR series supports MIDI Tuning Standard (MTS) SysEx messages, unlock its microtuning potential with the MTS-ESP Suite!


  • Support for the MR Rack, MR61, MR76 and ZR76 models
  • Create and edit sounds using the MR synth engine, functionality which is not available from the hardware
  • Full performance editor (MR Rack only)
  • Drum kit editor for creating and editing MR drum kit sounds
  • Bank manager for transferring, backing up and organising banks of sounds and performances
  • Parameter linking system, for simultaneous editing of the same parameter across multiple parts or layers
  • Ability to save and recall insert FX presets and system parameter dumps as SysEx
  • Direct access to MIDI ports for sending and receiving SysEx messages, for compatibility with DAWs that don’t support SysEx
  • Support for all MR ROM preset expansion cards
  • Support for loading MR format .sbk sound bank files
  • Full parameter undo/redo
  • MIDI CC learn for all parameters
  • Freely resizable interface
  • Mac Retina and Windows HiDPI support
  • Free, completely functional 30-day demo

Windows System Requirements

  • Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11
  • 32 bit or 64 bit
  • A host that supports VST, VST3 or AAX plug-ins.

Mac OS System Requirements

  • macOS 10.9 or newer
  • 64 bit only
  • A host that supports VST, VST3, AU or AAX plug-ins.
  • Intel or ARM Mac

1.07 (2023-10-29)

  • Add check marks to wave menu to show current selection.
  • More robust handling of MIDI ports on Windows.
  • AAX support for Apple Silicon.

1.06 (2022-11-16)

  • Fix VST3 bundle structure for architecture on Windows.

1.05 (2022-11-01)

  • Fix param linking via common MIDI channel if MR MIDI Mapping enabled.

1.04 (2022-10-07)

  • Fix issue processing handshaking if SysEx in/out ports set to something other than HOST on Setup page.
  • Add panic menu to send all notes off, all sound off and reset all controllers messages.
  • Editor now responds to reset all controllers messages.
  • Add button to cancel dump.
  • Part expression defaults to 127.
  • Fix dragging pitch bend wheel on UI.
  • Respond to MIDI program changes in accordance with the hardware behaviour.
  • Reset part params when selecting a new sound for a part via MIDI program change if part param reset is enabled.
  • If multiple sys ctrls assigned to same CC, only the first will respond to changes from the UI or received CCs, in accordance with the hardware behaviour.
  • Allow ctrl/cmd click on menu params to reset them to default value.
  • Ignore RPN/NRPN messages if part Data Entry Receive is disabled.
  • Ignore Volume, Pan and Expression CC messages if disabled for a part.
  • Respond to CCs 91 and 93 to change part FX bus routing for non-ICP parts.
  • Sound list fixes.
  • Update FX bus from sound alt FX bus setting on selecting a new sound, if required.
  • Add option to export/import single layer sounds into selected layer.
  • Fix waveform change getting added to undo stack when loading sound.

1.03 (2022-02-07)

  • Fix issue processing handshaking if SysEx in/out ports set to something other than HOST on Setup page.

1.02 (2021-12-16)

  • Fix receiving large SysEx messages on Windows.
  • Fix recall of MIDI ports in standalone on Windows.
  • Correctly parse init RAM handshake reply.
  • Ensure all sound, drum kit and performance dumps have command byte set to 0x02 when sending to hardware.
  • Fix crash when dragging a file over the keyboard.
  • Fix installer on 32 bit Windows.

1.01 (2021-11-09)

  • Bank manager now supports loading of MR format .sbk sound bank files.
  • Fix pagetables for AAX plug-ins.

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