keysvocalssax i dont want to kill your interest in the machine before you start. The main thrust of what i am saying is that on paper the machine is realy not a great improvement over the PA1X for ordinary arranger playing use and in reality may be less efficient in terms of real time control in a live performance. However the PA800 is supposed to have a new sound engine that is better than the PA1X (although there is no way you can tell the difference from the demos online) Unless you can get your hands on one, there is no way to tell how the machine actually sounds or performs in a live setting