I have not done a gig with the two cabinets yet. I have been rehearsing this summer with the one cabinet and not having to push it too much. I have 4 gigs in October. One band is classic rock with three guitar players and a drummer. The other band is a Tower of Power type of group with 3 horns, guitar, organ and drums. Neither of the bands are super loud. I'm going to try the rig without PA support and see how it goes. If it doesn't work the PA support will be there so I'm ok testing it out knowing the PA can be a backup. Both bands have a nice PA with subs. What I noticed so far in adding the second cabinet is the bass is much more beefy than with the single 12". I really like being able to tote that head in the pocket of my gig bag.