I am new to this forum. I am looking to buy a korg Pa1xPro or Pa2xPro. I would appreciate information on the differences between the Korg Pa1xPro and Pa2xPro?

I am having difficulty deciding whether it is worth paying the extra dollars for the Pa2xPro if i could get the same sound quality, styles, sounds..... etc in the Pa1xPro?

Would the Pa2xPro give me superior quality and if so to what extent?
Your honest advice would be much appreciated.
Thankyou.