I recently acquired a used PS Audio 5.0 preamp. The place that I purchased from replaced any capacitators that were faulty. They said that I should plug it into a power bar so I could turn it off to save the capacitors in the future. I am concerned also that keeping the unit plugged in all the time will cause damage to the external power pack, which seems to get a little warm. PS Audio did send me the manual (thanks) and it says to plug it in the wall and never unplug, and turn the unit off using the switch. That however does not stop power from going to the power pack which stays warm. Do I need to worry about shortening the life of a 40 year old power block? I would like to use this preamp for many years as I paid a fair amount for it.
Warm regards, Fritz