I hve the PA1x and m really keen on getting some better pianos on it as the korg stock piano is not great. please listen to these links and tell me if you think these pianos designed for the Pax sound

1. good
2. reasonble
3. great

I know its subjective but i would still like an opinion before i shell out some cash. I am prticulrly intersted in EXB 4

Cheers

Spalding
http://www.pa1xpro.de/korg_audio_video_demos.htm