That was, indeed, a BLUE Ball on my guitar cabinet. John Byrd (Carrboro, NC) does our live sound, and I stay out of his world as much as I possibly can. I have little idea what's working and what's not in the live situation. When I'm on stage, I'm just the guitar player.
I don't know who was doing FOH for Rilo Kiley on that tour... I wish I could help out, but I really have no idea.