Hi Larry!!
Yes, assuming equal flat EQ recording for both keyboards
I had a PSR3000 too. This one was the worst if you play with other musicians.

My last Korg keyboard was a Trinity. It sounded amazing live and in recordings but the touch panel was so temperamental that it couldn´t be used safely live and I´m still reluctant of using touch panels but, the PA600 seems a good compromise...
I will purchase one as soon as it is available in southern Europe.
Regards
Jo

Touch screens have improved enormously since the Trinity, Jose. Other than design issues of where to place buttons and the size of contact areas (and those issues also plague real buttons too!), on my Roland I have never had a single issue of unreliability.

I did have something of an issue with the Kronos touch screen, but primarily because they try to cram too much into the screen, and use fonts too small to touch accurately. But Korg and Roland arranger touch screens nowadays have no issues...