I have no doubt that the comparison was slanted toward the SX900. Early on, the SX900 piano used a sustain pedal not present in the S975. Of coarse, the S975 was portrayed to be the poor stepchild left behind to facilitate a trade up state of mind.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact