To add a little to what Dan has stated. I've heard 3 USB ports (2 to device and 1 to computer). 64 MB standard sampling memory and expandable to 256MB. More than 128 note polyphony! I also hear that it won't be available until either late this year or early next year.

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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com