In the 80's I used vertical Mesa 2x12's with the cel/EV combo with my Mark III/IV. That was the greatest cab I ever owned. I bought a more recent Mesa vert 2x12 a couple years ago and was not pleased at all with the lack of bass. It did not work for me. I even put two EV reissues in there and it wasn't spectacular. For me, the metal grill Mesa vert 2x12 with both panels on the back, cel/EV combo, ported cabs are the greatest ever made.