Type: 2-Way In-room loudspeaker • Low Frequency Drivers: Dual 12-inch (300mm) Black Carbon Cellulose Composite Cone (C4) cast-frame woofers • High Frequency Driver: 3” (75mm) dual annular Teonex® ring-diaphragm compression driver with dual neodymium motor structures mated to Sonoglass® HDI™ horn • Recommended Amplifier Power (Full bandwidth): 500 WRMS, minimum