System Type 4-way Coaxial Sound Pressure Level (Sensitivity) 88 dB (+- 1.5dB) Frequency Range 34 Hz to 49 kHz Continuous Power Handling (RMS) 30 Watts Maximum Peak Power Handling 210 Watts Nominal Impedance 4 ohms Woofer Diameter 6 x 4″ Cone Material Carbon and mica reinforced IMPP Surround Material Rubber coated cloth Basket Material Iron Plate Press Magnet Material Ferrite Magnet Weight 4.4 oz Voice Coil Bobbin Glass Imide Voice Coil wire Copper Mounting Depth 1-5/8″ (Shallow basket) Tweeter Type Twin Polyethylene terephthalate (PET) dome Diameter 11 mm (Super) and 11 mm