This is the precision 3d model of JBL VerTec VT4889 cabinet. All measurements were made from real, original loudspeaker.
All features are taken into account:
-outer sizes,
-inner sizes,
-size and position of bass reflex,
-all holes for speakers have the right sizes,
-all holes for handles and connection plate have the right sizes.
Model ready to production from 18mm plywood by CNC. Just take some 18mm plywood, speaker set, few handles, a handful of screws and obtain your own line array at the lowest cost!