i studied the user manuals for both yam 3000/1500 and pa50. somehow, it seemed more professional and precisely the pa50's one. still, yam seems to me to be more flexible and considering it's multiple connection possibilities, also the easier OS could be a good choice. but i have some doubts about the sound engine. the pa has triton's HI, right? how than could yam compete with this, since it hasn't the "professional" sounds enherited from motif?