JBL CONTROL 14C/T-BK - 4" CO-AX CEILING SPKR (2 PER CTN), BLK Two-Way 100 mm (4 in) Co-axial Ceiling Loudspeaker. 100 mm (4 in) high output driver with polypropylene cone and butyl
4x JBL GX6428 4"x6" INCH 240W 2-Way GX Series Coaxial Audio Powerful Speakers Bundle - Walmart.com
JBL CLUB-422F 4" (100mm) Two-Way Car Speaker - Creative Audio
Harman Pro CSS8004 Jbl 100mm 4in Commercial Series 15w Ceiling Speaker.