I saw a friend's reggae band over the weekend that was using a Bose PAS with 2 Bose sub woofers. I was very impressed. The band has a drummer, bass player, electric guitar and keyboards and the vocals and acoustic guitar were easily heard over the rhythm section. And apart from being audible I must add that they sounded very good.
While I have read many good reports about the PAS here on the forum I was a little sceptical about how well they would work with a live band. The Bose PAS sounded very natural and I was sitting well off to the opposite side, well away from the speakers and that didn't even matter.
My friend John who sings and plays guitar in the band makes guitar hangers
http://wallacher.com/ and has designed one specially for connecting to the back of the Bose PAS so those musicians using guitars can hang them on the back of the speaker pole when they aren't in use. He hasn't released it yet but will be showing it at NAMM later in the month. I know UD uses guitar with a Bose PAS so this may appeal to him.