How long do you let your tube amp "warm up" to get the best sound from it? I've seen conflicting information on this so I was wondering about what other peoples' experiences have been. I know you can get a sound from them in seconds after switching it on but how long does it take for the tone to sound good to you, especially for amps that don't have a stand-by or if you don't use stand-by. What I've noticed with my Monoprice 5w is that it takes about 5 to 10 minutes before it starts sounding its best. Before that, it's less warm and thinner sounding.