madtheory is right,they are from an outdoor rig which was part of the the millennium dome but a decent sound is achievable.They refuse to change the processor which has never been set-up right for live or club sound,so you have to adjust from the amps directly.The bins are too much as are the horns,but also the flying angle gets optimum projection starting at the raised bar area which doesn't help considering that the crowd are all in front of this!