This video explains the difference between sa2 and dnc, shows how much controll is needed to get the dnc voices on par with the sa2 voices...

Thats why the ec5 pedals are a must hen you want to play the pa3x DNC voices to their fullest.. They require much more effort, but they leave the player in charge...



Still no answer on the VH of the PA900

According to the specs however the PA3 has 4 voices at once... While the Pa900 has only 3 ... Also the pa3x has much more vh options...
They are not the same, however, that does not say anything about the quallity, TC hellicon quallity is allways stellar also in their cheeper products.