The Sttaf is a relatively easy speaker to drive, especially compared to the rest of the Totem line. The Rogue Cronus Magnum II with 100wpc would have plenty of power and it's a magnificent sounding amp.
As for the Prologue Premium, I don't know how well it would drive the Sttaf's. You should call Vince at Totem regarding the match-up with the Prima Luna.
As for the Prologue Premium, I don't know how well it would drive the Sttaf's. You should call Vince at Totem regarding the match-up with the Prima Luna.