Pa800 has 120 voice polyphony, Pa500 has only 80 voice polyphony.

Pa800 has 240 MB of sound data, Pa500 has only 128 MB of sound data.

Kind regards,
Tommy

[This message has been edited by TommyF (edited 01-29-2008).]
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Yamaha PSR-S770, Korg Krome 61