In 2ohm mode its only putting out 320w, so should be just fine. In any case, unless I buy a second One10 and consider actually gigging it, it wont be pushed at all
I've actually just sold my Berg setup as I haven't gigged with my own cabs for over 12 months, venues I play in the circuit almost always provide a backline with full PA support so for me its mostly amp head to FoH the punters are hearing. Should the need to have my own backline arise again, as I say I may buy a second One10 and see if it can cope, if not Ill get something cheap and heavy I can stick in the shed and not have taking up valuable space in the house!
Intend to take this little setup to rehearsal soon and stretch its legs a little. I'm also agonising over whether this Mesa can replace my other amp (Darkglass M900); initial signs are looking that way for sure, but we shall see at proper levels!