I own the Tyros and find the OS great, but I have tested the Ketron SD1 plus and that is a definite winner where sound and styles are concerned. It's wave based drums are the most live sounding by far. There are some issues, but I must give it to the Italians, they make great insruments and speakers.
Ketron no 1!

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Roy-Andrč
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Roy-Andrč