Hello Richard:
Is matter of personal preference, I am a Very Happy owner of a Ketron SD1 since it came out, still, to me...the Best keyboard for my taste, needs, programing registrations, sounds, playback (SMFs with waves) functions, etc....
I work in a music store and also have the Korg PA1X Pro among others, and is probably my second keyboard option, but, like DanO said, excelent keyboard feel, acoustic guitar sounds nylon and steel......check out both, and let us know your comments.
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mdorantes
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mdorantes