CS-HX539 3-Way Coaxial 320W Peak/40W RMS Power Frequency Response: 30 - 25,000Hz Sound Pressure Level: 87dB/W.m 13 cm (5-1/4'') Carbon Mica Cone Woofer 52mm (2-1/16'') Poly-Ether Imide Cone Midrange 12mm (1/2'') Poly-Ether Imide Dome Tweeter Ferrite Magnet (Woofer) Neodymium Magnet (Mid-Range) Rubber Surround Mounting Depth: 44 mm (1-3/4'')