I´m relatively new to tube world and hence I have a lot of (obvious) questions.
In the recording studio where I use to hang out and play with my friends, is one of those modern tube mic pre-amps. It has a plate voltage selector with two possible selections “Low†and “Highâ€. It is usually set on “Low†setting. I know if changes the sound but how about the tube life time? Does it shorten the life time, or vice versa, if you use tube with lower plate voltage than it is designed for?