I compared the Suhr rlir to the fryette ps2, in both cases I was using a Soldano hr25 and ran the line outs to a hafler ta1600 SS power amp. The Suhr was more articulate, clear. The Fryette by comparison was darker and had more low end thump. I really think it depends on the amp and what the player is going for as to what is best. If metal is the goal for example, I would pick the fryette, for rock the Suhr.
Im interested in both of these but Im curious how you are running a load on the amp.
Amp - Speaker out or just line out? If line out only then you need a load on the speaker out, what are you using? And why did you run to a power amp vs just using the amp?