I have owned SF Power 2, 2SE, 3, BAT 150, 75SE, and now 150SE. I have powered Wilson Watt/Puppy 5.1 with Power 3 before but it didn't do it for me, Wilson needed more power than Power 3 can provided.
I have compared 75SE to Power 2 and Power 2SE (as well as ARC VT-100 Mk 2 & 3) extensively using Amati Homage, 75SE is so so so far ahead of the pack I would not even think they are in the same class. granted, 75SE goes for twice as much as Power 2, but the sound difference is well worth the money.
if you can swing 150SE, you will not regret it. at least go for Power 3 if you want to stay with Sonic Frontiers, I had Line 3SE with Power 3 for a while and it was a very nice combo for the money.
I have compared 75SE to Power 2 and Power 2SE (as well as ARC VT-100 Mk 2 & 3) extensively using Amati Homage, 75SE is so so so far ahead of the pack I would not even think they are in the same class. granted, 75SE goes for twice as much as Power 2, but the sound difference is well worth the money.
if you can swing 150SE, you will not regret it. at least go for Power 3 if you want to stay with Sonic Frontiers, I had Line 3SE with Power 3 for a while and it was a very nice combo for the money.