System Type 6-1/2 ̋ 3-Way Coaxial Speaker System Sound Pressure Level (sensitivity) 87dB (± 1.5dB) Frequency Range 37 Hz to 24 kHz Continuous Power Handling (RMS) 70 Watts Maximum Peak Power Handling 320 Watts Nominal Impedance 4Ω Crossover Frequency 4,600 Hz Tweeter: 11mm PET dome tweeter 1-5/8″ cellulose fiber cone midrange Woofer Diameter 6-1/2″ Cone Material Carbon and mica reinforced IMPP Surround Material Elastic polymer Magnet Material Ferrite Magnet Weight 7.6 oz Mounting Depth 1-7/8 ̋