KingKORG features a 3-oscillator x 2-timbre design allows you to generate thick and rich sounds, plus a newly developed XMT modeling sound engine. XMT (Xpanded Modeling Technology) is proprietary Korg. XMT was created specifically to offer a wide variety of sounds, while keeping operation simple. In a conventional synthesizer, the sound-creating process requires you to adjust the oscillator settings one by one, making it difficult to see the overall picture. In contrast, KingKORG provides pre-set algorithms that contain combinations of various types and numbers of oscillators, letting you easily and quickly sculpt stage-ready sounds. The wide range of oscillator algorithms includes the choices you’d expect from an analog synthesizer–sawtooth wave, square wave, and noise–in addition to numerous PCM/DWGS algorithms, giving you plenty of choices for creating highly personal sounds.

The built-in vocoder uses audio from the onboard mic input to modify the sound, creating an effect as though the synthesizer were talking. Kingkorg's vocoder features Formant Shift to dramatically modify the tonal character, as well as Formant Hold, which allows you to “freeze” a vowel sound and play it back using the keys. Thanks to the KingKORG’s dual-timbre architecture, you can even combine the vocoder with another timbre, either as a complementing sound or a modulation source.