no the best tube sound when you actually put your speakers inside tube. to make it happen you definitely need to roll either one tube for both speakers or per each speaker.
If I'm looking for "Tube Sound", why would I put a Tube Pre in front of a SS amp?
I'm purposefully not specifying speakers as I would like to know in general terms the arguments for and against. So, to the degree that speaker characteristics could also influence the choice, please explain. FWIW, I do not know a phase angle from an impedance curve so I will try and educate myself as we go along. Hopefully, others may benefit too.