JBL VTX Series, Manual

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VTX A 12 | Rigging Manual
14 - THE VTX A12 BASE PLATE
The VTX A12 BP Base Plate accessory is a universal adapter frame that enables VTX A12 arrays to be ground stacked on top of com-
patible subwoofers or support structures such as stages, scaffolding, or carts. Using the included M20 knob-screws, the VTX A12 BP
attaches directly to the bottom of an A12 array, and then to M20 plates on the top of a VTX B28 subwoofer. The rear angle selection bar
can be set for angles between -15 and +5 degrees. When not used with B28 subwoofers, the A12 BP’s M10 through-holes can be used
to permanently attach an A12 array to other support structures. Configurations and load conditions for using the VTX A12 BP can be
obtained using JBL LAC-3 prediction software.
14.1 BASE PLATE OVERVIEW
NOTES:
• The ratchet strap opening can be used to secure the ground-stacked array to a structure to prevent tipping.
• Four M10-sized screws can be used to secure the base plate onto a fixed structure (like a stage or a cart) for permanent in-
stallation.
• An M20 knob and screw attach the base plate onto supported subwoofers like the VTX B28.
• Storage position for the M20 knob.
A
B
C
D
M10 THROUGH HOLES (X8)
M20 KNOB
RATCHET STRAP
OPENING
M20 STORAGE
FRONT ATTACHMENT
ANGLE SELECTION PLATE
A
B
C
D