RCF PL 8X Passive Speaker. A ceiling speaker with a beautiful and cutting-edge design, the PL 8X can be flush mounted in panels or false ceilings. utilising a 1" tweeter supported by a bridge and an 8" coaxial woofer. A line transformer built into the PL 8X allows for direct connection to constant voltage systems operating at 70 V or 100 V. The transformer's several sockets enable selection of the output power from a range of values. A unique three-hook system makes installation quick and simple by eliminating the need for screws, pallets, or other attachment components.