You might want to call The Cable Company (who has a lending library) or another retailer that has both 1) a lot of power conditioning experience and 2) a good return policy. They can guide you to what they think will be best in your particular system with your AC.
But it seems that power conditioners are considered to be system dependent. Some conditioners work well with amps, others do not (it is often recommended to plug amps into the wall and everything else into a conditioner).
From my experience, I'd suggest looking into Equi=tech (or maybe another balanced power conditioner manufacturer), Running Springs (often toucted as being good for amps as well as all other gear), and Audience (while not perhaps the ultimate, I've seen recs of using their 1 and 2 plug units with a power strip like the Wireworld Matrix).