I use an Exact Power EP15 on all my non amp equipment and highly recommend it. I agree that amps should not run through power conditioners. What I have done for many years now is run all of my amps 220 (I am in the US). You get the benefits of balanced power and no restriction of current delivery to your amps. Not all amps sold in the US can run 220 but for those that can, I think its the way to go.

mw