well Abacus. i know that for a time the PA1X demos on the Korg PA.com site stood side by side and in many of tyhe demos they used exactly the same demo to show off the instrument and you would be hard pressed to hear the difference. this was the topic of conversation on the Korg forum for many weeks. And many decided not to upgrade because there was uadilbly very little difference between the 1X and 2X. Then shockingly korg took down the PA1X demo's just leaving the 2X ...... The 2X may be better than the 1X because of the sampling memory and the new DNC capability but the difference is not like night and day. Not by a long way.