What to expect of tube noise?

[Scott Frank]

I just bought a Rogue Audio Cronos tube integrated amplifier. The sound is definitely different from transistor, and awesome, I'm glad I did this. I have 4 hours of listening time on the unit and am trying to figure out how long I should wait before suspecting a bad tube. I've got some noise on one channel and don't want to start swapping the tubes across channels until the burn in period is officially over. But I can't find any information on how long that period actually is. Does anybody know?

[Bernd]

I just bought a Rogue Audio Cronos tube integrated amplifier. The sound is definitely different from transistor, and awesome, I'm glad I did this. I have 4 hours of listening time on the unit and am trying to figure out how long I should wait before suspecting a bad tube. I've got some noise on one channel and don't want to start swapping the tubes across channels until the burn in period is officially over. But I can't find any information on how long that period actually is. Does anybody know?

Just swap the tubes over and see if the noise follows.That will give you your culprit. Burn in varies greatly, but noise is not good. Some tubes are bad from the off and there is no guarantee- how long anything -with a tube.
Welcome to the glory of glow.
Let me know how you get on.

Bernd

[Geoffcin]

I just bought a Rogue Audio Cronos tube integrated amplifier. The sound is definitely different from transistor, and awesome, I'm glad I did this. I have 4 hours of listening time on the unit and am trying to figure out how long I should wait before suspecting a bad tube. I've got some noise on one channel and don't want to start swapping the tubes across channels until the burn in period is officially over. But I can't find any information on how long that period actually is. Does anybody know?

I would call Rogue today and tell them the problem.