Amazon.com: AudioPipe APHC-6256 5 Inch 400 Watt 8 Ohm Pro Compression Driver Tweeter Car Audio Speaker Amplifier Kit with Aluminum Horn, Black : Electronics
2 Inch HF Compression Horn Speaker Driver Unit 150w With Titanium Diaphragm For Tweeter Loudspeaker DE-5102TN from China Manufacturer - Ningbo Dator Electronic CO., LTD
16Ω Compression Driver for Large Format Horn Speakers | AtlasIED
DS18 Audio PRO 3 Bolt On Throat Compression Driver with 4 Titanium Voice Coil and Horn 1000 Watts 8-Ohms