I have four 8ohm Celestion G12 Century speakers in my Krank Revolution 4x12" cabinet.
Currently I am selling the cab, because the highs will explode my head off. And I just bought Rivera K212 and VHT "Fat Bottom" 2x12" cabinets.
If your amp (head or combo) is dark and unclear sounding I may recommend TRYING these, but at least in 4x12" cabinet with VH4 they did not work out that well. The speakers are extremely sensitive and clear, but do not have any character or personality of their own, in my oppinnion.
Surely they are tight as... umm...maybe it is not suitable to say it out loud.
...but they do not seem to handle the deep bass extremely well (I am using downtuned 7- string guitars - 8-string on its way).
Highs are extremely sparkly, even too ice picky sometimes. Mids are somewhat dull and lifeless, but definitely in front.
These speakes do cut through, but do they cut through the way one wants them to is a wholy different question.
Maybe I would use these speakers in a Line 6 2x12" combo. Could work. Don't own such a combo - Haven't tried.