Does anyone know the difference between Roland HP 601 and 603/605 digital piano? The HP-601 came out later than the 603 and 605 models and it is a bit cheaper. Cannot find any online review of the 601. Looking at the specs they are nearly identical to the 603 and the 605 except the sound system (which matters nothing if you are only using headphones), plus one more point: the sound engine is described as:
Piano Sound: SuperNATURAL Piano
while on all others (603 / 605, LX-7, LX-17) it says:
SuperNATURAL Piano Modeling
(The Roland sound engine for "super natural" sound is not sampling, but it is modeling the sound based on formulas, no sound samples.)
Does this mean the 601 does not include the sound modeling engine as the other ones do? Does it mean it uses sampling? Or is it some sort of hybrid or "simple" modeling compared to the others? Leaving out the word "modeling" is suspicious here.
There is no info on the Roland web site, they are hiding such "details" and rather overwhelm the viewer with all sorts of hyperbole. A clear distinction would be very good.