I own the Totem Ones which are less efficient than the Sttaf and have tried a plethora of amps (SS and tube) with them.
Due to the general consensus that Totems love power, I tried various recommended SS amps including Naim Nait 5, Plinius integrated, Plinius class A power amp, and a Rotel power amp.
I also had at the time a Cayin TA-30 which is similar to the Prologue 2 and the TAD-60, and much preferred the tube units. To my ears they bettered the SS amps without really giving up anything. So I would stick to the Rogue or Primaluna and wouldn't worry too much about lack of power. The only amp I tried that ran out of steam was the Almarro 318B (18 wpc).
In fact if I were you and had to pick an amp today, my choices would be similar.
Due to the general consensus that Totems love power, I tried various recommended SS amps including Naim Nait 5, Plinius integrated, Plinius class A power amp, and a Rotel power amp.
I also had at the time a Cayin TA-30 which is similar to the Prologue 2 and the TAD-60, and much preferred the tube units. To my ears they bettered the SS amps without really giving up anything. So I would stick to the Rogue or Primaluna and wouldn't worry too much about lack of power. The only amp I tried that ran out of steam was the Almarro 318B (18 wpc).
In fact if I were you and had to pick an amp today, my choices would be similar.