Shunyata vs. Audience vs. Bybee?

Again, all these recs for devices are missing what is the most important point in power conditioning: the specific context of the system (and perhaps most immportantly local power grid).

Though I will note that the appropriateness of power conditioners for big, power-hungry amps does seem to be pretty consistent across locations. Some power conditioners seem to limit the dynamics of an amp. Which is why many amp manufacturers recommend plugging their amps directly into the wall.

Power conditioning seems very system dependent. I'd try to find these at places with good audition or return policies. Music Direct, Cable Company and Tweek Geek all come to mind.