What would be goo tubes to put in my blackstar to get better classic rock gain and better cleans. It's fine now but if I can do anything to help it that be great.

Same with speakers. It's got cel 70 in it 12". What's a good classic rock brand?

Btw I love my blackstar ht40.
My newest cover Rivers Of Babylon sublime style.


My gear:
taylor 310
Fender strat MiM
Cry Baby-GCB-95
Tone port ux2
tascam dp4
80s rock, classic rock, classic metal
Jj are always a good choice. With a Blackstar though you'd probably be better off modding it. I haven't seen the schematic for the HT-40 but it's Blackstar so you can bet there will be clipping diodes in there somewhere negating the effect of good tubes.
For classic rock tones I'd be looking towards greenback clones. Scumbacks, seeing as how you live in the States
Gilchrist custom
Yamaha SBG500
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100

Cathbard Amplification
My band