PLAN] VTX G28 Subwoofer Dual 18" with internal plan measurement - YouTube
VTX G28 stackable subwoofers are... - JBL Professional | Facebook
JBL Professional - #JBLPro VTX G28 subs ensured a smooth, robust low frequency response on the Summerfest Briggs & Stratton Big Backyard stage. #SummerOfVTX Clearwing Productions | Facebook
VTX G28 | JBL Professional Loudspeakers
JBL VTX V25 System Package – Gearwise – AV & Stage Equipment