I recently hooked up with an older Mesa half back 4x12 cabinet that I am running my Mark IV through. It's pretty sweet! It has all Black Shadow speakers in it now (Celestion, I think). I know these cabs used to also come with the Electro-Voice EV12Ls in the bottom half. My question is, how would the cabinet sound if I were to use the EV speakers in the bottom half of the cab as opposed to the Black Shadows? Would the toner be better? Bassier, Louder, clearer? If anyone has any input, I would greatly appreciate it. Thanks!