Korg Opsix mk II Altered FM Synthesizer

The Korg Opsix MkII Altered FM Synthesizer builds on the original Opsix’s critically acclaimed digital synthesis, offering a powerful yet approachable platform for complex sound design. With a 37-key velocity-sensitive keyboard and a streamlined interface, it doubles the polyphony of its predecessor from 32 to 64 voices, allowing for expansive, multidimensional FM tones. The synth provides six distinct styles of FM synthesis, giving you both depth and immediacy, with access to 250 onboard presets for instant inspiration.

Key Features:

• Next-generation Altered FM engine with 64-voice polyphony for rich, complex soundscapes

• Six FM synthesis styles, featuring 40 algorithms and a 6-operator architecture for detailed, versatile sound design

• Operator Mixer section with per-operator rotary encoders and faders, color-coded to differentiate Modulator and Carrier operators

• 250 onboard presets, including 100 new patches, spanning all synthesis styles for professional-grade tones

• 250 user preset slots, with four banks of 16 patches for fast access to favorites

• 37-key keyboard with velocity and release-velocity sensitivity for nuanced expressive performance

• V.Patch virtual patching system with 12 routing options for advanced modulation possibilities

• 21 oscillator waveforms for versatile sound creation without losing FM character

• Advanced analog modeling with 11 filter types, including recreations of the PolySix and MS-20 filters

• Up to three ADSR envelopes, three LFOs, and three effects simultaneously per program for near-limitless customization

• 23 LFO waveforms, from traditional shapes to stepped and randomized, enabling experimental modulation