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!
jlj1

Showing 1 response by elevick

Czarivey-You are a bit paranoid, aren't you? Not too many amps will "burn in front of your eyes" unless you mess with them...

Standby was created for a reason and generally speaking it works quite well at extending both tube and equipment life. An amp that burns up usually does that as soon as you turn it on, not after being on standby for 4 days or 400 days.

Yes, I do turn off gear when I'm not going to be around for a couple of days but never for shorter periods.
Preamp tubes should last longer in standby by avoiding the current rush. Many NOS 6922's can last 5000 to 10,000 hours.