SynthsKorg ⇝ Korg M1R

Korg M1R EXKorg M1R EX BackKorg M1R EX Right Side Controls

The Korg M1R is the rack-mount version of the popular M1 synthesizer workstation. It has 4 MB of sampled waveform ROM and uses what Korg's first generation of ROMpler technology, called "AI synthesis".

The 8-track sequencer can store up to 10 songs and 100 patterns. Default patch and combination memory is 50 each, but it can be doubled to 100 of each by allocating some sequencer memory to patch storage, and that will reduce sequencer memory to 4400 notes.

The internal sample ROM can also be expanded with the EX-M1R ROM expansion kit, doubling the wave memory to 8MB with 275 PCM samples. It also has two card slots - one for a waveform card and one for a patch memory card. A large library of expansion cards was released by Korg and other third-party manufacturers. An MCR-03 RAM card can be used for storing additional patches.

The Korg M3R is a lower-end 1U version of the M1R with fewer samples and its own line of expansion cards.


Year Released: 1988

MSRP: $2166

Polyphony: 16 notes

Multitimbral: 8 parts

User Patches: 100

User Performances: 100

ROM: 4MB at 16-bit resolution (100 multisamples, 44 drum samples)

Sequencer Memory: 7,700 notes

Effects: 2 effects processors with reverb, delay, chorus, EQ, overdrive, flanger, and rotary speaker

Screen: 40 x 2 character backlit LCD

Power Consumption: 11 watts

Dimensions: 430 mm x 405 mm x 88 mm

Weight: 5.9 kg

This is a 2-space rack unit.

Sequencer: 8 Tracks, 10 Songs, 100 Patterns, 4400 notes. Memory mode can be switched to expand the sequencer to 7700 notes as the cost of 50 patch and 50 combination memories.

User Demo Videos


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Sound Samples

WAV samples are available on

File Downloads

Korg M1R Manual

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