Hello DNA,
That sounds kind of funny...........
I can try and help you. The SD1 is not available yet. The PSR9000pro is . Contact me at Guitar Center in Towson Maryland . Phone # is 410 821 5200.
oneils4@home or guitarcenterdan@hotmail.com
Dan O'Neil
PS..By the way the PSR510 was a great keyboard . I would place the 510 in Arranger "Hall of Fame" . Along with the Technics KN1000 ,Roland E86 and ....????? my 1st keyboard Yamaha X4500.