So are you saying the Korg PA1X can have up to 4 (tones) or (patches) per user voice? I've always known for this to be referred to oscillators per voices or (elements) per voice. If you go by elements the Casio allowed up to (4) (tones) per user voice.

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.