A light-weight paper cone diaphragm directly connected to the voice coil reproduces tight low end The injected polypropylene dust cap ensures rigidity and optimizes internal damping The voice coil is supported by the double-layered spider suppressing unwanted rolling while also ensuring long excursion to reproduce rich bass sounds Lead wire from the voice coil is sewn to the spider reducing wire movement and increasing signal integrity 4 Ohm SVC with 420W RMS power and 1800 Peak Power