EMINENCE PSD3006-8 2-Inch Throat Size HF Device 2" exit HF driver, 4-bolt mounting pattern 3" high-temperature voice coil Titanium diaphragm with polyimide VC former Geodesic embossed dome increases strength, reduces distortion Recommended minimum crossover: 800 Hz, 12 dB/octave Power handling: 80 watts RMS (AES500 specification with x-over &gt;500 Hz, exc. 24 dB/octave), 115 watts RMS (AES800 specification with 800 Hz x-over @ 12 dB/octave) Impedance: 8 ohms Frequency range: 500-18,000Hz Sensitivity: 111.4 dB (1W/1m across 500 Hz-18 kHz) Magnet weight: 80 oz.