JBL Professional on Twitter: "Check out the 2216Nd Differential Drive Woofer, providing rich low frequency performance for the M2! http://t.co/cTBoALwFNu" / Twitter
JBL ASB7128 2x18" Passive Subwoofer, 4000W | Full Compass Systems
JBL VTX V-Series Small-format Professional Sound Systems | AVC Group