I do not know exactly what electricity costs. But if it runs 1.00 a day to have an amp on all the time it adds up to about two hundred and fifty dollars a year you save if you only turn it on 6 hours a day. And that adds up to two thousand dollars in ten years which should be enough to have some caps and a power switch replaced. I think these figures might be quite conservative for an class a, ab, or a tube amp. And you will also be making a better world for the cute mice that live in the fields. Sounds like a win win win proposition.
