Pre-amp tubes typically have a very long operating life (there are exceptions). In stand-by mode, there should be no appreciable effect on lifespan. There is even an argument to be made that doing so will lengthen tube life by eliminating current in-rush effect. I would leave it on stand-by unless I was leaving for vacation or other reason the pre were unattended for long periods, just as a safety thing.
Tube life in preamp. Please help
Hello-
Using an Audio Research SP9 and I've shut it down each time between listening sessions.
I find however it sounds better if I leave it in the standby position.
How much does this lessen the life of the two tubes it contains? They were Amperex and not cheap.
Please advise. Thanks!
Using an Audio Research SP9 and I've shut it down each time between listening sessions.
I find however it sounds better if I leave it in the standby position.
How much does this lessen the life of the two tubes it contains? They were Amperex and not cheap.
Please advise. Thanks!