The Expanded SA voices are basically the 2nd generation SA voices. These take the current SA voices to another level. It puts more of the nuance control in the hands of the user. There are dedicated buttons on the Motif XS that allow the user to control various things within an SA voice. To be honest Yamaha fixed my complaint about the SA voices with the new Motif XS.

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.