RCF LF18N451 Woofer<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4，5 - inch Inside/Outside copper voice coil</li><li>3000 Watt continuous program power handling</li><li>97.5 dB Sensitivity</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hm8uAB4IL.jpg" noproxy>