JBL Professional on Twitter: "Check out the 2216Nd Differential Drive Woofer, providing rich low frequency performance for the M2! http://t.co/cTBoALwFNu" / Twitter
2269h
JBL ASB7128 2x18" Passive Subwoofer, 4000W | Full Compass Systems
Jbl 2267h - Page 2
JBL 2269H - ported or passive? Need a little help... | AVS Forum
Ultra-Long-Excursion, High Power, Dual 460 mm (18 in) Cinema Subwoofer