They say 256 Notes of Polyphony... but on Yamaha's page it says...
128 for Preset Voices
128 for Expansion Voices
Listen through good speakers or headphones. https://youtu.be/rFBTh3YC9C0
That would be strange...
Korg PA4x(76), korg Kronos 88, Ipad, Macbook, Mainstage3, Komplete Ultimate 11, Omnisphere2, Keyscape, Trilian, Serum, pianoteq5, Ivory2, Blue2, Zebra2, Diva, Hive, V/collection, Synthmaster2.8, Halion 6, Superior drummer. http://keyszone.boards.net