Celestion BN15-400S 15-Inch Neo Woofer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Nominal diameter 381 mm/15 in </span></li><li><span class="a-list-item"> Power rating 400W rms </span></li><li><span class="a-list-item"> Nominal impedance Available 4Ω or 8Ω </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51%2BcdcLz%2BML.jpg" noproxy>