JBL VTX Series Manual
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- Page 1 VTX A12 | Rigging Manual...
- Page 2 VTX A12 | Rigging Manual GENERAL INFORMATION VTX A12 - Rigging Manual Document Number: 1000297495 Version: D - EN Distribution Date: November 25, 2020 Copyright © 2020 by HARMAN International; all rights reserved JBL PROFESSIONAL 8500 Balboa Blvd Northridge, CA 91329...
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Page 3: Line Array Calculator
Thank you for purchasing JBL VTX Series products In more than 75 years of JBL innovations, the VTX Series stands apart as a milestone in the practical application of cre- ative engineering. VTX products herald the next generation in line array loudspeaker systems: a new era in performance, system integration and user friendliness. -
Page 4: Table Of Contents
VTX A12 | Rigging Manual T ABLE OF CONTENTS 1 - DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 - SAFETY . - Page 5 VTX A12 | Rigging Manual 8.6 Extension Bar and Frame Orientation ..............32 8.7 Using Dual Extension Bars .
- Page 6 VTX A12 | Rigging Manual 14.4 Assembling Ground-Stacked Arrays ..............65 14.5 A12 Base Plate Examples .
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Page 7: Declaration Of Conformity
STANDARD DESCRIPTION TEST AGENCY Applies to machinery and lays down essential 2006/42/EC health and safety requirements. Tested at JBL Professional MACHINERY DIRECTIVE ISO12100 Applies to loudspeaker and lays down essential 2014/35/EC health and safety requirements. Tested at JBL Professional... -
Page 8: Safety
11. Contact JBL Professional for advanced servicing issues. 12. CAUTION - DO NOT PERFORM ANY SERVICING UNLESS YOU ARE QUALIFIED TO DO SO. -
Page 9: Important Safety Warning
None of the information in this section should be used without first obtaining competent advice with respect to applicability to a given circumstance. None of the information presented herein is intended as a representation or warranty on the part of JBL. Anyone making use of this information assumes all liability arising from such use. -
Page 10: Symbols
VTX A12 | Rigging Manual JBL is not responsible for the application of its products for any purpose or the misuse of this information for any purpose. Furthermore, JBL is not responsible for the abuse of its products caused by avoiding compliance with inspection and maintenance procedures or any other abuse. -
Page 11: Mechanical Limits
DGUV regulation 17 (BGV-C1) for a minimum safety factor of 4:1. Minimum safety factor requirements for suspended arrays are often set by local regulations. Use JBL Line Array Calculator 3 software (LAC-3) to check mechanical limits and ensure compliance with local regulations. -
Page 12: System Components
VTX A12 BP | Base Plate VTX Delta | Delta Plate CAUTION: Always use components and accessories specified and approved by JBL Professional . When a cart is used, use caution when moving the cart to avoid injury from tip-over . -
Page 13: Software
5.1 LINE ARRA Y CALCULA TOR 3 Line Array Calculator 3 acoustical prediction software is used for the design and mechanical validation of VTX Series line array systems. Using LAC-3 is a three-step process. First, venue dimensions are defined using either X/Y/Z coordinates or the fast distance/angle method. -
Page 14: Array Link
5.2 ARRA Y LINK JBL Array Link is a mobile companion app that works with LAC-3 software to assist technicians deploying VTX Series systems in the field. Array Link uses a QR code to directly transfer mechanical data in real time from an array design created in LAC-3 to a mobile phone running iOS or Android. -
Page 15: Ground-Stacked Arrays In Lac-3
This message is presented when the specified array design exceeds the mechanical limits set by the JBL team for the speakers or selected accessories. Array designs that trigger this message should not be used under any conditions, as they can lead to hardware damage and/or injury. -
Page 16: Vtx A12 Rigging System Overview
VTX A12 | Rigging Manual 6 - VTX A12 RIGGING SYSTEM OVERVIEW VTX A12 cabinets include a next-generation rigging system that is easy to use, simple to understand, and highly accurate. VTX A12 enclosures are transported vertically on carts of four using the VTX A12 VT Vertical Transporter cart system accessory. During trans- portation, all four cabinets travel collapsed with their angles set to the 10-degree position. -
Page 17: Vtx A12 - Angle Lock Mechanism
VTX A12 | Rigging Manual 6.2 VTX A12 - ANGLE LOCK MECHANISM The VTX A12 includes an innovative Angle Lock mechanism that automatically engages when the cabinets are suspended and reach their desired angle positions. The Angle Lock mechanism consists of two main parts, the red Locking lever and the black Lock Release button. -
Page 18: Vtx A12 - Angle Selection
VTX A12 | Rigging Manual 6.3 VTX A12 - ANGLE SELECTION Each VTX A12 includes an Angle Selection panel on each side that is used for selecting the cabinet-to-cabinet splay angle. The options are marked in degrees and the panel allows for eleven unique positions ranging from 0.25 degrees to 10 degrees. VTX A12 ANGLE OPTIONS: 0.25°, 0.5°, 1°, 1.5°, 2°, 2.5°, 3°, 4°, 6°, 8°, 10°... -
Page 19: A12 Vt And Transportation
VTX A12 | Rigging Manual 7 - A12 VT AND TRANSPORT A TION The VTX A12 VT Vertical Transporter is used to transport VTX A12 cabinets in groups of four. When stacked on the VTX A12 VT, all four cabinets are set to the 10-degree (STORAGE) position, which secures the rigging system for transportation. The optional VTX A12 VT CVR Cover can be used for additional protection. - Page 20 VTX A12 | Rigging Manual STEPS: • Lower the next A12 cabinet on top of the first enclosure and make sure all four corners are aligned and the rigging arms are engaged. • Use the two quick release pins on each side of the A12 cabinet to secure it to the A12 below. •...
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Page 21: Installing The Vt-Top On The Vtx A12 Vt
VTX A12 | Rigging Manual 7.2 INST ALLING THE VT -TOP ON THE VTX A12 VT The VT-TOP connects to the top cabinet of an A12 stack to create a robust and defined footprint that stabilizes the carts during trans- portation. -
Page 22: Storing The Vtx A12 Vt
VTX A12 | Rigging Manual 7.3 STORING THE VTX A12 VT Once the system has been deployed, the VT-TOP can connect to the VTX A12 VT for storage. After the two are connected, several as- semblies can be stacked together for storage. STEPS: •... -
Page 23: Stacking The Vtx A12 Vt With The Vt-Top
VTX A12 | Rigging Manual 7.4 ST ACKING THE VTX A12 VT WITH THE VT -TOP When the VTX A12 VT and VT-TOP are connected, several assemblies can be stacked together for storage. STEPS: • Rotate the VT wheels so that the wheels are pointed to the inside of the VT. •... -
Page 24: Stacking The Vtx A12 Vt
VTX A12 | Rigging Manual 7.5 ST ACKING THE VTX A12 VT If necessary, the VTX A12 VT can be stacked for storage without the VT-TOP. STEPS: • Rotate the VT wheels so they point to the inside of the VT. •... -
Page 25: Truck Packing Dimensions
VTX A12 | Rigging Manual 7.6 TRUCK PACKING DIMENSIONS 2286 mm (90 in) 2434 mm (96 in) -
Page 26: Vtx A12 Af Array Frame And Eb Extension Bar
VTX A12 | Rigging Manual 8 - VTX A12 AF ARRA Y FRAME AND EB EXTENSION BAR The VTX A12 AF is a lightweight Array Frame used for suspending VTX A12 enclosures. The frame was designed to operate in sin- gle-point, front-to-back, or side-by-side suspension modes using the VTX A12 AF EB Extension Bar. -
Page 27: Extension Bar Overview
VTX A12 | Rigging Manual 8.2 EXTENSION BAR OVERVIEW The VTX 12 AF EB Array Frame Extension Bar is used to connect the Array Frame to the suspension points. One Extension Bar is in- cluded with the VTX A12 AF and additional Extension Bars can be purchased and used depending on the application. The extension is compatible with 5/8-inch shackles, three of which are included. -
Page 28: Attaching The Extension Bar
VTX A12 | Rigging Manual 8.3 A TT ACHING THE EXTENSION BAR The Extension Bar includes two tab positions and two quick release pins for connecting to the Array Frame. STEPS: • Line up the Extension Bar with the connection tabs on the Array Frame. •... -
Page 29: Extension Bar Attachment Options
The example below shows how the real and “virtual” positions are spaced across the extension bar. TIP: Refer to JBL Line Array Calculator 3 software to determine the best shackle position and attachment combination to achieve the required array angle. - Page 30 VTX A12 | Rigging Manual POSITION A Position A is the first Extension Bar attachment position. This position is used when the array is sus- pended from two points (front and rear, or side-by- side), and can be used for single-point hangs if the prediction shows that a shackle can attach to a phys- ical attachment point on the Extension Bar.
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Page 31: Extension Bar Storage Positions
VTX A12 | Rigging Manual 8.5 EXTENSION BAR STORAGE POSITIONS The Extension Bar can be secured to the top of the A12 Array Frame for transportation and storage when not in use. Guides have been built into the top of the A12 Array Frame and the storage position of the Extension Bar in order to facilitate quicker attachment, and once the Extension Bar is properly placed for storage, the attached quick release pins from the Extension Bar can be used to secure the two pieces together. -
Page 32: Extension Bar And Frame Orientation
VTX A12 | Rigging Manual 8.6 EXTENSION BAR AND FRAME ORIENT A TION There are three positions available for securing the Extension Bar to the Array Frame when preparing to suspend an array. Note that the choice of physical attachment position must come from correct selection of the attachment position in the LAC-3 prediction. The frame orientation dictates the angle to which the top enclosure of an array should be set to achieve the proper frame-to-cabinet connections. -
Page 33: Using Dual Extension Bars
VTX A12 | Rigging Manual 8.7 USING DUAL EXTENSION BARS The VTX A12 Array Frame can be deployed with either one or two Extension Bars. The Array Frame ships from the factory with one Extension Bar. In cases where a VTX A12 array is to be suspended from side-by-side suspension points, a second Extension Bar can be used. -
Page 34: Installing The Laser Bracket
A laser inclinometer can be installed onto the VTX A12 Array Frame using the included mounting bracket. The bracket is designed to work with the JBL VTX LZ laser unit, TEQSAS LAP-TEQ laser inclinometer, or RECLINE laser inclinometer. The Array Frame includes front and back exit holes to allow the laser light to shine through. -
Page 35: Extension Bar Use Cases
VTX A12 | Rigging Manual 8.9 EXTENSION BAR USE CASES The VTX A12 Array Frame can be deployed in a number of configurations with one or two VTX A12 Extension Bars. It is important to note that only certain configurations are correct and safe for suspension of VTX A12 arrays. The images below illustrate proper configura- tions for attaching VTX A12 Extension Bars, and where suspension points should be attached to the Extension Bars. -
Page 36: Attaching The Array Frame
VTX A12 | Rigging Manual 8.10 A TT ACHING THE ARRA Y FRAME The VTX A12 Array Frame was designed to be both lightweight and easy to handle, whether it is transported mounted on an array or separately in a case. Since the Extension Bar was designed to travel attached to the Array Frame, these instructions assume this con- figuration. -
Page 37: Deploying A12 Systems
VTX A12 | Rigging Manual 9 - DEPLOYING A12 SYSTEMS The suspension of a VTX A12 system by a trained technician should be a simple and straightforward process. Follow all steps below and the array will suspend safely and efficiently. Failure to follow the steps as outlined may damage equipment and/or result in a potentially hazardous condition. -
Page 38: Suspend The First Stack
VTX A12 | Rigging Manual 9.2 SUSPEND THE FIRST ST ACK STEPS: • Ensure that all red Locking levers are in the locked position, then engage the hoist to lift the array off the ground. As the hoist lifts, each cabinet will expand to the correct inter-enclosure angle, and the sound of pins sliding past locking points will be heard. -
Page 39: Attach The Next Stack
VTX A12 | Rigging Manual 9.3 A TT ACH THE NEXT ST ACK STEPS: • Raise the suspended cluster of VTX A12 cabinets and align the next cart of VTX A12 cabinets below it. • Once the two clusters are aligned, carefully lower the suspended cluster until the front attachment points are nearly touching the front attachment points of the cluster on the cart. - Page 40 VTX A12 | Rigging Manual STEPS: • With the front quick release pins set, use the suspension hoist to raise the attached clusters. The second cluster may swing forward slightly as it lifts off the ground and the cabinets expand to their correct inter-enclosure angles. Be sure the Vertical Transporter is completely off the ground and the cluster is able to fully expand before proceeding to the next step.
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Page 41: Repeat Until Completed
VTX A12 | Rigging Manual 9.4 REPEA T UNTIL COMPLETED Repeat the previous steps until the entire array has been assembled. -
Page 42: Disassembling An A12 Array
VTX A12 | Rigging Manual 10 - DISASSEMBLING AN A12 ARRA Y Carefully follow the steps in this chapter to correctly and safely disassemble an array. 10.1 OPEN THE ANGLE LOCKS AND A TT ACH THE VT STEPS: • To desuspend an array of VTX A12 cabinets, begin by safely lowering the entire array to a working height. •... -
Page 43: Close The Angle Locks And Move Pins To Storage
VTX A12 | Rigging Manual 10.2 CLOSE THE ANGLE LOCKS AND MOVE PINS TO STORAGE STEPS: • With the VTX A12 VT secured by all four quick release pins, lower the array until the VT’s front wheels touch the ground. The array will roll backwards slightly and, as the array is lowered, the angles of the bottom four cabinets will close to the 10-degree position. -
Page 44: Repeat Steps To Disconnect The Next Four Cabinets
VTX A12 | Rigging Manual 10.3 REPEA T STEPS TO DISCONNECT THE NEXT FOUR CABINETS Repeat the previous steps to disconnect and store the next four cabinets of the array. -
Page 45: Repeat Steps To Disassemble The Array
VTX A12 | Rigging Manual 10.4 REPEA T STEPS TO DISASSEMBLE THE ARRA Y... -
Page 46: The Vtx A12 Sb Suspension Bar
VTX A12 | 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. -
Page 47: Vtx A12 Sb For Pull-Back
VTX A12 | Rigging Manual 11.3 VTX A12 SB FOR PULL-BACK The primary role of the Suspension Bar is as a pull-back attachment at the bottom of an array, to facilitate array configurations requiring a significant amount of downtilt. In this situation, the VTX A12 AF is used at the top of the array for the primary suspension point, with the VTX A12 SB attached to the bottom of the array and lifted by a second, rear motor point. -
Page 48: Vtx A12 Sb As A Frame And Pull-Back
VTX A12 | Rigging Manual 11.4 VTX A12 SB AS A FRAME AND PULL-BACK If two suspension hoists are available for front and back attachment, then Suspension Bars can be used for both the top and bottom frames on a VTX A12 array. This configuration can reduce both cost and the overall weight of an array when the flexibility of the main Array Frame is not needed. -
Page 49: When Do I Need A Pull-Back
VTX A12 | Rigging Manual 11.5 WHEN DO I NEED A PULL-BACK? Pull-backs are best suited for when the center of gravity (CoG) of an array falls outside the footprint of the Array Frame. Long, curved arrays with a large down angle typically qualify. When LAC-3 detects this condition it displays an error to indicate that the array frame alone cannot achieve the down angle needed for the design (LAC - Example 1). -
Page 50: Using A Single Vtx A12 Sb
VTX A12 | Rigging Manual 11.6 USING A SINGLE VTX A12 SB The Suspension Bar can also be used as the main suspension frame. When the VTX A12 SB is used as a frame, it is simpler, lighter, and more cost effective than using a VTX A12 AF. The disadvantage of this configuration, however—and the main reason that this configu- ration is not recommended for regular use—is that the center of gravity (CoG) of the given array must perfectly line up with the shackle attachment position on the Suspension Bar. -
Page 51: When Can I Use The Sb As A Frame
VTX A12 | Rigging Manual 11.7 WHEN CAN I USE THE SB AS A FRAME? The LAC-3 example below illustrates a scenario where it is appropriate to use the VTX A12 SB as the main array frame. LAC Venue Example The venue geometry below calls for an array with its CoG perfectly lined up with the rear suspension point of the top A12 enclosure (LAC - Example 4). -
Page 52: The Vtx Delta Plate
VTX A12 | Rigging Manual 12 - THE VTX DEL T A PLA TE The VTX Delta Plate is a rigging accessory used for controlling the horizontal aiming of an array. Two chain motors are attached to the Delta Plate, allowing for adjustments of up to +/- 10 degrees. The VTX Delta Plate can also be used to distribute the weight of an array to two points. -
Page 53: Ground Stacking The Vtx A12
VTX A12 | Rigging Manual 13 - GROUND ST ACKING THE VTX A12 The VTX A12 VT GND outrigger system allows A12 enclosures to be ground stacked without removing them from the VTX A12 VT Verti- cal Transporter cart. The two outriggers extend in front of and behind the stack, and connect to the VT using the included quick release pins. -
Page 54: Angle Selection Mechanism
VTX A12 | Rigging Manual 13.2 ANGLE SELECTION MECHANISM The Angle Selection mechanism sets the ground stack array angle. Two quick release pins select and secure the angles. One pin sets the angle (STEP 1 - SET ANGLE), while the other locks it when the desired angle is reached (STEP 3 - LOCK ANGLE). As the label indicates, the process for setting an angle is three steps: selecting the desired angle, lifting the array to reach the angle, and locking the angle. -
Page 55: Vtx A12 Vt Gnd Parts
VTX A12 | Rigging Manual 13.3 VTX A12 VT GND PARTS Screw Jacks - Two screw jacks are included with each VTX A12 VT GND outrigger. The screw jacks are used to lift the array stack off the ground and ensure that no weight is resting on the VT wheels. The screw jacks are not used for adjusting the array angle. -
Page 56: Building A Ground Stack
VTX A12 | Rigging Manual 13.4 BUILDING A GROUND ST ACK Follow the steps below to safely assemble a VTX A12 ground-stacked array using the VTX A12 VT GND accessory. STEPS: • Connect the VTX A12 VT GND to the VTX A12 VT. First, remove the quick release pins from the FRONT and REAR positions •... - Page 57 VTX A12 | Rigging Manual...
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Page 59: Disassembling The Ground Stack
VTX A12 | Rigging Manual 13.5 DISASSEMBLING THE GROUND ST ACK Disassembling a ground-stacked A12 system is similar to assembling a stack, only in reverse. Follow the instructions below to safely disassemble the array. STEPS: • If more than four A12 cabinets are used, disconnect and remove the additional A12 cabinets from the stack until only four A12 cabinets remain on the VT. - Page 60 VTX A12 | Rigging Manual...
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Page 62: Ground Stack Limits
GND as to not create a tipping hazard. In general, straight arrays of up to six A12 enclosures will work, but curved arrays tend to push the CoG towards the rear of the GND, which may limit the number of enclosures to four. JBL Line Array Calculator 3 software calculates these conditions in real time and should always be used to determine array parameters. -
Page 63: The Vtx A12 Base Plate
-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 PLA TE OVERVIEW... -
Page 64: Storage Configuration
VTX A12 | Rigging Manual 14.2 STORAGE CONFIGURA TION The two angle selection plates can be removed from their regular positions and secured horizontally for storage using the M20 knobs. Use the (S) marks on the angle plate labels for proper alignment. 14.3 ANGLE SELECTION PLA TES The Base Plate angle selection plates include nine pin positions, allowing for a range of angles from -15 degrees to +5 degrees in 2.5-de- gree steps. - Page 65 VTX A12 | Rigging Manual 14.4 ASSEMBLING GROUND-ST ACKED ARRA YS The Base Plate attaches to supported VTX subwoofers using their M20 pole mount adapter/plates. Before attaching the Base Plate, assemble and position the subwoofers at the desired location. For instructions on assembling and attaching the B28 GND or other sub- woofer-specific accessories, refer to the subwoofer rigging manuals.
- Page 66 VTX A12 | Rigging Manual STEPS: • Place the first A12 onto the Base Plate and pin the front two corners. • Lift the rear of the A12 and position the angle selection plate at the desired location. Pin the rear two corners.
- Page 67 VTX A12 | Rigging Manual STEPS: • Select the inter-enclosure angle for the first A12 and extend the rigging arms to set the angle. • Stack the next A12, pin the cabinets together, and set the angle for the cabinet. Repeat steps 3 and 4 to add the remaining cabinets to the array.
- Page 68 VTX A12 | Rigging Manual 14.5 A12 BASE PLA TE EXAMPLES VTX B28 GND VTX A12 BP VTX B28 VTX B28 VT VTX A12 VT GND...
- Page 69 VTX A12 | Rigging Manual 14.6 A TT ACHING THE BASE PLA TE ONTO A STRUCTURE The base plate can be permanently attached to a structure like a stage or platform using its eight through-holes. This is especially useful for permanent installations or other fixed applications where a ground-stacked A12 system is needed, but not often moved. In such situations, the base plate is permanently attached to the structure and subwoofers are not used beneath the array.
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Page 70: Specifications
JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. - Page 71 JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
- Page 72 JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
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Page 73: Vtx Delta
JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. -
Page 74: Vtx A12 Vt
JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. - Page 75 JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
- Page 76 Footnotes: 1: Safe and maximum limits for ground-stacked arrays always assume that the stacking surface (floor and/or stage) is flat. Do not deploy ground-stacked arrays on non-flat surfaces. Always use JBL LAC-3 pre diction software to check mechanical safety when using the VTX A12 BP Base Plate.
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Page 77: Contact Information
+1 (844) 776-4899 www.jblpro.com PROFESSIONAL CONT ACTS, OUTSIDE THE U.S.A.: Contact the JBL Professional Distributor in your area. A complete list of JBL Professional international distributors is provided at our U.S.A. website: www.jblpro.com HARMAN Professional EMEA HARMAN Professional APAC... - Page 78 VTX A12 | Rigging Manual...