Topmusicanswers
Technically the HP603 is a superior model because, among other things, it uses SuperNATURAL Piano Modeling technology, while the HP601 uses the previous SuperNATURAL Piano technology (sampled sound).
Technically the HP603 is a superior model because, among other things, it uses SuperNATURAL Piano Modeling technology, while the HP601 uses the previous SuperNATURAL Piano technology (sampled sound).
