I notice that when I leave my amp in standby mode it sounds better when I play it again rather than switching it on and playing it from cold. The question is how much power does it draw in standby? It's rated at 50 wpc but I'm sure that there are other stats I need to provide to answer that question. I'm pretty sure a lot of modern equipment is meant to be left on standby as it has switches underneath or the back of the unit. I suppose the other question is how long does it need to warm up?