PreSonus AIR 12 Active LoudspeakerWe say : The PreSouns AIR range of active loudspeakers provide a great solution for small to medium PA systems in music venues, classrooms and assembly halls. With three options to choose from, plus two sub woofers to add to your system if required, these speakers are simple to install and operate via a digital screen on their back panel. You can use them as wedge monitors if required too. All the speakers have a direct microphone input in addition to