Rack version of the best-seller workstation M1 with exactly same characteristics.
Today, is the M1r still worth to be in a modern recording studio?
RACK (weight: 6 kg) 2 units
The main panel features a 16 * 40 display , 36 buttons and a main data pot encoder for value editing.
Back panel terminal connectors:
- Midi interface,
- main out
- AUX out (stereo or mono + mono)
- 2 pedal inputs assignable to program change, sequencer start-stop, FX Bypass, filter cutoff and data entry.
Frontal panel terminal connectors:
card slot for data and PCM
VOICES main core is a NEC-V50 manages 16 digital oscillators based on 16 bit AI System subtractive synthesis.
basic patch is composed by either:
- single mode: 1 PCM per oscillator
double Mode: 2 PCM per oscillator
The oscillator features some edit functions like detune, pan, volume and variable start offset.
WAVETABLE hold a 4 Mb ROM, 149 waveforms split in 3 main sounds groups: 1- acoustic: sampled traditional instruments including strings, violins, sax and piano. 1- drum: 50 PCM percussions and one-shot drums. 2- DWGS: pre-calculated and mathematically generated PCM. Vast array of interesting waves such as additive harmonic, vocal formants and also traditional basic waves like sine, saw or pulse. INFO: DWGS were originally developed on previous model DW-8000.
EX UPGRADE standard wavetable can be expanded to EX with further 4 Mb PCM.
Even more waveforms can be added using Korg M1 PCM cards or others 16 bits AI2 systems like Wavestation. INFO: EX upgrade is factory native in successive T series.
PERFORMANCE the COMBI mode manages up to 8 patches in the same time with individual parameter settings:
- volume mix
- zone split
- velocity split
- damper on filter
FILTER section is the VDF Variable Digital Filter is a non-resonant lowpass filter with Keytrack function.
ENVELOPE there are 6 EG in total:
- AMPLITUDE VDA: OSC1 and OSC2 4 segments + 2 times
- FILTER VDF: OSC1 and OSC2 4 segments + 4 times
- PITCH EG:OSC1 and OSC2 4 segments + 2 times
LFO section features 2 modulators MG:
MG1: modulates OSC1-OSC2 pitch
MG2: modulates filter VDF
Both LFO features 4 waveforms: triangle, saw up, saw down and square.
Some extra modulations parameters include delay-start, modulation synch and variable depth.
EFFECT the M1r DSP manages 2 X 16-bits sound processors combined in parallel or serial mode.
There are mainly 9 effect categories:
- rotary speaker
- phase shifter
- frequency exciter
MIDI limited CC# implementation but the exclusive systems are complete. TIP: the MINDSCOPE function is a neat too for incoming events monitoring.
SEQUENCER works in both real-time or step notes mode (quantizing up to 1/48 resolution) and manages 8 tracks.
SCALES one microtonal user-free slot + 4 ROM presets:
equal temp 1-2
MEMORY holds up to:
RAM: 100 patches
RAM: 100 combi
RAM: 10 songs + 100 patterns 4400 notes (7700 reducing memory balancing between patch- combi).
Sounds can be saved using special MCR03 card.
TIP: internal battery is a CR2032 with holder, it is quite common and easy to replace.
EDIT: there are several editors for m1/m1r like Soundiver, Midiquest or older Caged m1 for Atari St.
Related M1R models:
KORG M1: 61 keys keyboard version
KORG T1 (EX) (88-note weighted piano keyboard)
KORG T2 (EX) (76-note keyboard)
KORG T3 (EX) (61-note keyboard)