Driver Components Coated paper/pulp cone with 50mm two-layer copper voice coil, vented ceramic 5 magnet assembly and vented die-cast aluminum frame; Amplifier Power 1000W RMS; Crossover Frequencies 50Hz - 150Hz low-pass filter with LFE bypass; Input Sensitivity 400mV (full power)/20k Ohms (balanced); 14k Ohms (unbalanced); Enclosure Type Sealed; Finishes