10cm 4 39; Dual Cone Speakers 180Watts Features Dual Cone 180W Peak 20W RMS Power Frequency Response 70 - 20 000Hz Sound Pressure Level 89dB W m 10 cm 4 39; 39; Carbon Mica Cone Woofer Ferrite Magnet Woofer Hybrid Surround Mounting Depth 45 mm 1-25 32 39; 39;