output transformers need more time to reach steady state than the tubes! ref150se takes about 80 minutes for me. ref5se bass is more better
(mo better!!) after 40 minutes. Very apparent w/a sub in the system.
How long does it take your tube amp to warm up?
My tube amplifier has about 12 tubes and takes a couple hours for it to open up and sound really good and comfortable to listen to. Always wondered why it takes so long for a tube amplifier to warm up and what’s happening during this phase.
If I left it on for six or seven hours would it sound even better? I normally don’t leave it on for more than four or five hours.
How long does it take your amplifiers to warm up?