Its true the Audya is top of the line .For me its the piano sounds,sax,strings,organs and the programs sounds that you can
ajust 4 voices,the styles with the audio drums (latin,country,jazz(riff)
Ketron keyboards always have some bugs put they always fix
the problems
Althought its a heavy keyboard,thats mean a solid and Quality
But we should not forget the KN7000
Only my opinion
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ketron sd9,Technics KN7000,monitors Adam tv8, Yamaha Mixer