Hi, my doubt is: VA-5? PA-80?.
Somebody says me piano sound of PA-80 is not good, others say VA-5 is a better keyboard for the same price... For Scot PA-80 is a big disapointment, for others is a great kb...

So, two doubts:
-Is there any manner to improve the PA-80 piano?
-May I change sounds of arrangement parts in VA-5, as I may in PA-80?