Great posts, thank you! Thanks Raquel for the thorough discussion and to Al for the physics lesson! I previously used a hybrid integrated amp with 7308 tubes in preamp stage and a Consonance 2.2 CD player with tubes in output stage and left those on all the time for a few years without a problem. But when I got the new CD player I was informed to turn it off when not in use. However, I have left the Ayon on for a couple of days now as an experiment, so look forward to listening for changes in sound this weekend.
Do you leave CD players with tube outputs on?
I was wondering how many owners of cd players with tube outputs leave their CD players on all the time. I have a Ayon CD-1 with a tube output stage. Based on input I received I've been turning off after listening and let it warm-up at least a half hour before each use. On the other hand, it is my understanding that the electronic circuits for CD players need around 72 hours of being on to reach their full potential. Is there any harm in leaving a CD player with tubes on all the time other than a shortening of tube life?