Hey ugers, not sure if you guys can help me with this but here it goes, I have a mesa dual caliber head, its 50 watts all tube and im wondering just how loud it should be, dont get me wrong it has some power to it but my other guitarist in the band has a peavey efx either 100 or 150 watts solid, and what i want to know is should my amp blow his away when its cranked, not that i want to drown him out but i seem to have to have the amp at 8 or so just to keep up thnx
My Gear:

Gibson Lp
ibson Sg
Fender Strat
Taylor 914

Mesa Boogie Dual Caliber
Mesa Boogie 4x12 w V30's
Marshall Avt 150

Wylde Wah
boss Ds-1
Boss Ch-1
Danelectro delay
It most likely will be louder, but it might not drown him out completely if his is cranked. but his will definately sound much worse than yours. Maybe get an attenuator, like a Hot Plate attenuator.