JBL ASB4128 Subwoofer 100789958 The Jem Glaciator Dynamic was

The Jem Glaciator Dynamic was built with ultra-quiet operation in mind

12 internal programs with speed and fade control

Combine it with the 12

initial amount

class A fire rated acoustical fiberglass

JBL ASB4128 Subwoofer 100789958 The Jem Glaciator Dynamic wasJBL ASB4128 Dual 18 inch Subwoofer ASB4128 is a medium power subwoofer system comprised of two 460 mm (18 in) low frequency drivers in a front loaded, vented configuration. The deep, rectangular cabinet allows for extended low frequency bandwidth with minimum frontal profile. Features: Large vent area for high output. Parallel Discrete Switchable. See Array Guide on applications such as performing arts facilities, theatrical sound design, auditoriums,