Just picked up an ultra 2 weeks ago and WOW this thing rocks, I'm still trying to get a good live setup, tried my behringer b212d fr speakers and sounds OK, thru the board into 12" JBL's sounds great. Seems I get a better sound thru smaller speakers, I was thinking of trying a 4x10 cab for live as well as a feed to the board. Anyone use 4x10 setup?