correct way to turn off tube preamp

Classical1

By leaving your amp on 24/7 do you mean in a stand-by mode when not listening to it? If not then my suggestion is that you should never leave an amplifier on 24/7 (tube or ss) it is dangerous as well as wasteful.

Chuck

Chuck when not listening I have the amp in standby mode and have the tube pre turned off. I have a Naim CD and flat cap..Naim advised best results leaving it on. The Naim gear is very cool in idle. As a sidebar to all of this, I was always leary of tube gear. After 30 years of buying audio equipment I bought a deHavilland UltraVerve. Its the first tube preamp I've owned so I can't compare it to other tube equipment, but I can say it has made more of an improvement to my system than any other piece of equipment I've ever bought. I was not prepared for how nice a tube pre can match with a SS amp--I can't ever see going back. I hope to now go to a new SS amp (looking at Gamut, Pass .5 or Blue Circle) My monitors-Focus Audio FS688 are 85db, so I want to stay with a SS amp. Thank you again for your responses.

Classical1, Not to stir the pot, but I can't resist piling on your 'new' discovery of the benefits of a tube pre amp (with which I totally agree!). Wait til you hear a tube amp.......:-)

Classical1

I also use a tubed pre CJ premier 16II with a ss amp CJ premier 350 and really enjoy the results. Excellent dynamics and control with much of the mid range benefits of a tube amp. Newbee has a point though tube amps are a beautiful thing once you get past the heat and maintenance issues.

Chuck

I switched on my amp from standby mode before my pre which is automatically muted for the 1st 60 seconds for the tubes to warm up. On powering down, I switched off the amp to standby mode and then the pre. So far, no noise,thump or pop.....