RCF NX 10-SMA Powered Speaker. The NX 10-SMA is outfitted with a brand-new, high-power 400 W digital amplifier and a freshly created, 10-inch coaxial neodymium transducer, all of which ensure the system's exceptional audio quality and definition as well as its incredibly low weight. Thanks to the sturdy steel pole mount made of powder-coated steel that is mounted on the side, the NX 10-SMA can also be used as a portable PA system. RCF has two unique Equalisation Modes built in to manage the speaker's response in these various applications: Floor is used for monitoring the stage, while Free Field is used to use the speakers as a standalone PA system. Cabinet is constructed from Baltic birch plywood and painted with a highly durable finish for extensive use on the road.