At some point it became obvious, even with earplugs in, that one of the speakers was blowing out. During the crescendo on a couple of songs, when the bass drum and Adam Stevens guitar were both blasting, the stage right speaker would just make a brittle "wooomp" sound.
I'm pretty sure both Stevens (guitar, vocals), and Tyson Vogel (drums, vocals, clapping, crowdsurfing) heard it, didn't allow it to dampen the spirits of the crowd or the musicians. The set featured mostly songs from the last two albums, and a new (presumably unreleased) song that featured Stevens on Piano and Vogel on guitar. All together, it was a great performance from one of my absolute favorite bands. I heartily suggest everyone go see them!
Also on the bill was Akron/Family, a band I knew by reputation only. Not knowing their music, I spent most of the set trying to figure out exactly what was going on. I certainly didn't know what to expect, and not knowing the songs I got lost in a couple of places, but I have to commend them for generally knowing what they're doing and for putting on an interesting and unique show that managed to appeal to even non-fans.