The Monitor Audio PLIC II in-ceiling speaker features an 8-inch long throw bass driver with Rigid Diaphragm Technology (RDT II) cone technology to provide immensely powerful bass lines. This is achieved by the RDT cone reacting to an audio signal with lightning fast precision without deformation. A rigid aluminium baffle houses dual C-CAM mid-range drivers and an Micro Pleated Diaphragm (MPD) high frequency transducer directed towards the listening area to deliver the best possible sound balance to the listener.