Is a Sonic Frontier Power 2 a "differential amp"


I googled this concept about differential amps and can't find aa answer. Is a Sonic Frontier Power 2 a differential amp?
128x128kitegod
I believe it is a differential amp. However, you should try contacting Chris Johnson of Parts Connexion. Here is the president of Parts Connexion and he also ran Sonic Frontiers, he still does mods and repairs on SF gear.
Can't tell you about the design. But it was one of the worst sounding amps I ever owned.

Shakey
This review in Stereophile states that it is a fully balanced (differential) design.