KORG FM Synthesizer opsix mkII Altered FM sound source 37 keys 64 voices

Achieves simultaneous polyphony of 64 voices, twice the 32 voices of the original OPSIX. The color-coded operator mixer provides a deeper and more practical workflow. Equipped with a 16-step sequencer that can be automated. A free bundle of music software useful for creative activities. It has a built-in oscilloscope that allows you to visually check the tone you are creating through the screen.