CAS loudspeakers are the most room-friendly in-wall loudspeakers available. The CAS loudspeakers feature a listening window selector. In the Normal position, the on-axis response of the speaker is flattest. This setting is ideal when the primary listening position is within 30° of the loudspeaker’s main axis in a typical room. If the primary listening position is more than 30° off-axis or the room is very dead acoustically, then the switch should be set to Wide. In this position the total sound power is flatter at the highest frequencies. This results in a smoother, more balanced sound, regardless of where the speakers are installed or the listener is positioned.