Bomba6, the PSR-S750 is essentially a PSR-S910 in a tuxedo, but without the Vocal Harmonizer, but having the same powerful new speaker system as the PSR-S950.
It has the same styles and SA Voices as the S910, and sounds very good indeed.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.