B&C DE250 is a 1" high frequency compression driver- B&C DE250 high frequency drivers - B&C 1" high efficiency high frequency driver for speaker systems. B&C DE250 high frequency drivers available now.
44.4mm Diaphragm | Aft Diaphragm | Speakers - 4pcs 44.4mm B C De250-8 De160-8 De16-8 - Aliexpress