With a traditional Hi-Fi system where the listening position is between the speakers, correct setup of the left and right channels is important for accurate reproduction. However, with ceiling speaker systems they are designed to fill an entire room with audio, and these are often spaces with no single listening position (like a kitchen). As a result the left/right channel configuration is less important and open to some interpretation. Our advice is to think about how you are going to use the space. If you often want to listen to music while cooking for example, then wire the left/right channels according to the main worksurface. If the speakers will be used for TV audio then position them left and right of the TV. If you have 4 speakers (2 stereo pairs) in a large open plan room which has two areas (eg. kitchen/dining), then wire the speakers so there is a left/right pair in each area. Some amplifiers, such as the Sonos Amp, have a Dual Mono Mode which sums both channels so each speaker gets left and right. Although this does eliminate the stereo effect, it can be a useful setting for larger areas with multiple speakers where the listening positions are not ideally suited to stereo.