Axiom Home Page Forums General Discussion Home Theater EP500 Doesn't Turn Off

I'm sure this has been discussed before, but searching has turned up no results...I think it (the search feature) is broken.

My EP500 never turns off, I would assume it "goes to sleep"...but I have no evidence of that happening. I can also hear a very slight humming noise when its not in use. I don't think its any sort of ground loop problem...

This normal? Is not turning off going to shorten my amp's life?

Another observation. I had replace the driver in my EP500 due to a portion of the "surround" coming unglued. The new driver has a significantly smaller magnet on it? Does that matter? It seems to sound the same to my ears.