Do tubes affect ur tone? How so?
Is this a "joke", thread?

.
Well, to answer your question;
I believe it is widely known, - that different models of tubes, (i.e. EL34, EL84, 6V6, 6550....) sounds "drastically" different.
Also, most everyone I have spoken/written to; says- that different brands of tubes, also sound different.
I'm still running 100% fine, on the stock tubes in my Blackstar combo. I guess, that in... some years time; one, or all- of the tubes; may need replacement.
I am not going to "skimp on the patè", i.e. buying the cheapest tubes; I'll ask an expert for which ones, would make a good fit.
rock on \m/
-E