JBL 2450H High Frequency Compression Driver - Speaker Exchange
Amazon.com: JBL Professional D450TRIO 2-inch 600 Watts Peak Power Driver 300 Watts Rms High Sensitivity and Low Distortion Drivers with a Dome-Type Phenolic Diaphragm : Electronics
JBL 2420 Speaker Drivers with new 16 ohm Titanium diaphragms | eBay