Recommended Usage Front speakers Type 3-way bass reflex design Woofers Dual 6-1/2" PMD cone MidRange Driver 5" cone with waveguide horn Tweeters 1" aluminum dome with waveguide horn Magnetic Shielding Yes Twin Bass Reflex Ports Single port Gold-Plated Brass Extruded Terminals Bi-wiring terminals Frequency Response 30 Hz - 35 kHz Sensitivity 88 dB / 2.83 V / 1 m Input Power (Maximum / Nominal) 250 W / 100 W Impedance 6 ohms Product Dimensions (W x H x D) 8-3/4" x 38-9/16" x 13-9/16" Product Weight (lbs. each) 44.1 lbs.