SELENIUM RPST400 -Watt -Channel Studio Subwoofer ，<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Selenium RPST400 replacement diaphragm for the Selenium ST400 bullet tweeter. Use a genuine factory replacement diaphragm to repair a blown or damaged Selenium high frequency driver. </span></li><li><span class="a-list-item"> Selenium RPST400 replacement diaphragm for the Selenium ST400 bullet tweeter. Use a genuine factory replacement diaphragm to repair a blown or damaged Selenium high frequency driver. </span></li><li><span class="a-list-item"> Selenium RPST400 replacement diaphragm for the Selenium ST400 bullet tweeter. Use a genuine factory replacement diaphragm to repair a blown or damaged Selenium high frequency driver. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/415ILY-eeIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51lHXMPu%2BBL.jpg" noproxy>