The Monitor Audio PLIC II in-ceiling speaker features an 8" 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. To provide the listener with a uniform frequency spectrum when the speaker is played at higher frequencies, additional dual mid-range drivers that feature C-CAM cone technology and Monitor Audio’s new Micro Pleated Diaphragm (MPD) transducer are mounted on a rigid aluminum baffle and directed towards the listening zone provide uniform mid and high frequency dispersion.