The 450 Black HF Diaphragm is designed to deliver crisp high frequency output and smooth sound clarity in professional audio applications. It is suitable for compression drivers used in DJ speakers PA systems and stage sound setups. This diaphragm offers reliable performance stable response and efficient power handling during long working hours. Built with quality materials it helps r... https://www.compressiondriverdiaphragm.com/product/ati-pro-diaphragm-450-hd/