Doug,
Even though it is a hybrid the tubes will be on and
if you can afford it you can leave it on. I believe there are four tubes in the Premier 14. This may or may not be expensive. It is your choice on this. I turn my tube stuff off when I am done and realize that when I turn it on it may be a bit before everything sounds incredible. Don't get me wrong it sounds good right away but only gets better when the tubes settle down to do their job in about 20 minutes or so.:music:
BTW, my SS stuff stays on all the time.
Jeff