Korg volca fm 2 SynthesizerKorg's volca fm synthesizer receives a wide range of upgrades with its latest version, the Korg volca fm 2. This version of the Korg classic is a six voice, six operator GM synthesizer. With a sixteen step loop sequencer, effects, arpeggiator, and thirty two classic algorithms, the volca fm 2 replicates the sounds of the iconic Yamaha DX7. Classic synth sounds are ready at your fingertips with plenty of versatility to explore your own sonic creations.