I think you are confusing sensitivity and SPL. SPL is nothing more than a unit. Either the speaker in question can produce a certain number of units or it can't.
80 db is 80 db regardless of the speaker producing it.
There are some stand mount speakers that because of their drivers and design are capable of more bass output than some floor standers. How much power it takes to get there is a different situation, and that's where sensitivity comes into play.
80 db is 80 db regardless of the speaker producing it.
There are some stand mount speakers that because of their drivers and design are capable of more bass output than some floor standers. How much power it takes to get there is a different situation, and that's where sensitivity comes into play.