System Type Bookshelf speaker Configuration 3-way acoustic suspension design Driver Complement 6.5" aluminum cone woofers, 2” aluminum dome midrange, 0.75"/19mm aluminum dome tweeter Frequency Response 45hz – 20K Crossover Frequency 800 Hz, 3.2kHz Crossover Slopes 12 dB LP, 12dB HP, 18dB LP, 18 dB HP Sensitivity 87dB (2.83v@1m) Impedance 8 ohms nominal Inputs 2 each professional grade, nickel plated 5-way binding posts Speaker Dimensions 13.75 x 7.5 x 10.375 (H x W x D) Weight 20 lbs./9.1 kg each. Finish High Gloss Black