The synthesizer is built in such a way that it is essentially a Korg MS-2000 with a programmable step arpeggiator (the MS-2000 has only six simple patterns), a less advanced vocoder (8 bands instead of 16 bands on the MS-2000), lack of motion sequencing (MS-2000 had three motion sequences), lack of an XLR microphone input, and in a smaller case with fewer real-time control knobs.
Alternatively, OSC1 can produce a so-called "VOX" wave (which simulates human vocal formants), white noise, and one of 64 different digital waveforms created via harmonic additive synthesis.
[4] Additionally, the unit provides a number of built-in effects, such as flanger, ensemble (chorus), phaser, and digital delay, all of which can be applied to external signals.
The direct successor to the microKORG, the 'microKORG XL', utilizes the MMT (Multi Modelling Technology) engine, and is based on Korg's own R3 synthesizer.
[5] The XL features a brand-new LCD display and two large Program Select knobs for easier patch access, though has fewer real-time controls than the original microKORG.
The XL also features several included PCM Waveforms, including Piano, Brass Ensemble, nine Electric Piano and Clavinet, seven organ sounds (one of which emulates the Korg M1 Organ), a full String Orchestra, two variable formant waves and more than 32 digitally generated waveforms (SYNWAVE 6 is a ramp wave/inverted sawtooth).
On the inside, it sports the same exact features as the 'MicroKorg XL+', except it has 200 program storage instead of 128, and allowing for the long ribbon controller to serve as a modulation source.
Editing may only be done via a control app available for Mac and PC, and if one is daring enough, it is technically possible to create ones own editor using the available MIDI messages chart.