The JBL VTX G28 is a single 18-inch, 2-ohm (DVC) ground stackable subwoofer, and features Differential Drive Technology (DDT) with two DDT voice coils, two neodymium magnets and extremely high peak-to-peak excursion capabilities to deliver extended very low frequency performance.
The self-supporting aluminum cone of the JBL VTX G28 combined with V-shaped spider provide excellent strength and rigidity. Deeply drawn linear travel suspensions increase the mechanical lifespan of the speaker.