I had lost track of the Arsenal site and forgotten the name of it so thanks for the info.
With the AR9's being rated for 400 watts, I'm sure they like more than 100 watts and I'll give it to them. I don't think I've ever seen a 400wpc class A amp although one may exist. I don't know if I'll ever understand the ratings especially when Skeptic says watts are watts, end of story.
How a Class A rated at 30wpc is equal to 150wpc AB, makes no sense to me. I was OK with it until Skep said the watts is watts comment.
As far as not being able to get more power than what is available from the outlet, I agree. This said, the Parasound amp can draw 1000 watts of power which would only be around 10 amps (if my basic understanding of electricity is correct). On a 20 amp circuit, there should be no problem with this draw. It may never actually pull the full 1000 watts but the power should be there for it if needed.
When I ran two Parasound amps, the lights would dim with certain passages. Last evening, all lights were off for listening which is the way I prefer to listen. I have read of the distraction that lights can cause to a listening experience and have always been a believer in this concept anyway. The results were better than ever. I'm still in amazement.
Bill