Hey, what's up guys.

Alright, I got a Blues Jr. for Christmas, and I love it, especially once I tweaked the knobs just right. From what I read, the best thing to do with these amps is replace the stock tubes with others... but I'm a bit inexperienced in that area. If anyone would be kin enough to reply with the kind of tubes that would sound good for all-around blues music, it would be much appreciated!
Since a Blues Junior doesn't have that many tubes it make tube tasting affordable and fun. I'd first replace the Pre and the Power with JJ tubes. Affordable and great tone. Those should be your first replacements.
That just means you might not need to replace the speaker any time soon.