Class A Amp owners, Whats your power bill?

Class "A" amps draw the most current at idle, and draw less when playing music. So you are saving money by playing music if it is on.
Most amps, even the ones called class "A" are not 100% class "A" and when they get beyond the class "A" into class B they may draw more current than at idle. The big names which are way into class "A" usually do not ever get to class B operation, unless driven really hard.

I was always told that it's no more than a 25 watt light bulb? Any comments....

I'm running a luxman 550 II class a integrated. I've had it for about two months. While I don't leave it on 24/7, I have not noticed a difference in my power bill.

As you have noted Class A amps draw full current at idle, therefore, just turn them off when not in use.

I hear the power companies are now sending out upgrade to class A amp checks. The program is intended to help audiophiles who wish to upgrade to a class A amp. The program works according to my power company. They will access your system for free and then make a suggestion to which class A amp would work best in your system/room.Then when you turn your class A/B or D amp over at their amp change center. Then they the power company will cut you a check to the upgrade path for a class A amp..this program might not be in your area as of yet?