Everyone is relieving me of my paranoia, thanks a bunch. I just decided to do a little googling around and couldn't find anything at all, which is probably simply due to my inexperience. I'll likely do a bunch of studying up on all kinds of tubes, as well as a read-through of this thread and some intense website browsing for all manner of tube related fetishes. :p Guess I'm in for the long haul if I'm gonna get into tubes.
Also, do tubes really have a fairly large amount of impact on the soundstage, resolution, frequency response, and other audible aspects of an amp? I keep reading around that the tubes make all the difference, as if the hardware were secondary to the tubes, since, in my opinion, the amp itself would carry a majority of the sound reproduction, with the tube simply adding spice and flavor on the top. Are people just zooming way in on the differences between tubes to get a more detailed idea on what they sound like, or can tubes really make a $450 amp sound hundreds of bucks more expensive?
Also, sorry for all the questions, I'm simply full of them since I enjoy all this audio research, and I absolutely love to hear other's opinions on a subject I'm interested in. I'm hoping to become notorious on this site for asking hideous amounts of questions about anything and everything audio related so that I can always make an intelligent assumption and get the right gear for exactly the right reasons. Thank you all a whole ton!
This hasn't been posted in a while, and strictly speaking is only fully applicable to the original Lyr, but Lyr 2 owners can roll most of these (check with the Lyr 2 thread - I assume there is one - and/or Schiit, if you're not sure about a particular type).
I made a few minor edits.
This is a list i made of tubes known to work in Lyr.
ECC189 [6ES8] (Variable mu, not recommended but sound great to me)
PCC189 (as above)
6CG7/6FQ7 [flabby? see the following]
6GU7 works too, but even more flabby than 6CG7