JBL VTX Series, Manual

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VTX A 12 | Rigging Manual
11 - THE VTX A12 SB SUSPENSION BAR
The VTX A12 SB is a lightweight suspension bar that can be used as an array frame or to implement pull-back of a VTX A12 array. When
used for pull-back, the VTX A12 SB can be attached to the bottom cabinet of an array and connected to a rear suspension point to allow
for greater downtilt than is possible using the VTX A12 AF alone. The VTX A12 SB can also attach to the top cabinet of an array and be
used as a compact array frame. In this mode, the Suspension Bar connects to the top cabinet’s rear rigging points and the downtilt angle
is controlled by the number of cabinets and array geometry. Two VTX A12 SB Suspension Bars can be used for dual-point applications
and added aiming flexibility, one at the top of the array and one at the bottom.
11.1 SUSPENSION BAR OVERVIEW
CENTER SHACKLE
ATTACHMENT LOCATION
SHACKLE POSITION FOR
SIDE-BY-SIDE SUSPENSION
A12 ATTACHMENT POINTS
11.2 SUSPENSION BAR ATTACHMENT TABS
The Suspension Bar is designed to be connected either to the bottom or the top of a suspended array of VTX A12s. When connected
at the bottom (lowest cabinet of an array), the array attachment tabs must be released from their storage positions in order to attach the
SB to a VTX A12 cabinet. Remove the holding pins on either side of the SB and let the attachment tabs spring out and into place. The
attachment tabs can then get pinned to the VTX A12 cabinet using the cabinet’s quick release pins.