Leave an amp "on" permanetly


I understand that tube amps need to warm up sufficently before they can reach their potential. Is this also true with SS amps? I own a McCormack DNA-1 deluxe, and I hear a discernable difference when listening to my system "cold" versus "warmed-up". Do you also find this to be true?

If so, would people recommend leaving a SS amp on permanently? Could I damage my amp by doing this?
drewyou
I can't believe how many times this has to be pointed out. By turning devices on and off you cause the components in your equipment to heat and cool. This continual stress change is the single most stressful thing that occurs to any solid state, and more horribly, tube gear. Leave a light bulb on in your house and it burns out quickly. Leave your tube gear on forever and the tubes do not age as quickly and sound better. (In comparision to a person that turns their gear off once a day).

My Audible Illusions M3A has been called a tube killer more than 5 times on AudioGon foruns alone BUT I've never had it eat up any type of tube. Ever.

I leave everything on. Always. It sounds great!
Bad for the environment? Yes.
Extra heat to cool in the spring and summer? Yes.
So, definitely not the most environmentally best thing to do.

BUT -- THE SOUND!
Just do it |/
Danlin1, I think Stevecham was referring to the "Audiophile Environment" as in our hobby and not the environment as in the planet.
So what happens when you are out and there is a thunderstorm at home?
My practice is to switch on the system and let the system play a CD end to end while I am having dinner or watching my favourite program on TV. So when I am ready to listen typcally in about an hours time, its all ready to go. I shutdown everything when its time for bed.
I guess how I was raised, taught me to turn things off when not in use. I do keep my cable box and/ or pre on, all the time.---I also think my CJ350 (ss), uses more juice than a 100 wt. bulb??--When I ran tubes (16 el34's) you know that was off when not in use.
Not sure I agree with "on" permanently. Most hi end hi-fi stuff will be tubes or SS amps that run mainly in Class A operationn.....these naturally run very hot and waste huge amounts of energy and besides, tubes have a limited life span...why would you want to shorten it further?