· 100mm (4") 2-Way Coaxial · 210W Peak/21W RMS Power · Frequency Response: 45 - 22,000Hz · Sound Pressure Level: 90dB/W.m · Mica Cone Woofer · Poly-Ether Imide Balanced Tweeter · Ferrite Magnet (Woofer) · Neodymium Magnet (Tweeter) · Hybrid Surround · Mounting Depth: 43.1 mm (1-23/32'')