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84

VTX A

8

| Rigging Manual

15.7 - VTX RC500

137 mm (5.4 in)

254 mm

(10.0 in)

128 mm (5.0 in)

Footnotes:

1: WLL refers to the RC500 only. Always make sure the structure the RC500 is attached to can support the weight of the array

2: Refer to the 2D and 3D Customer Drawings for more detailed dimensions

3: Weight includes VTX RC500 only
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.

Construction:

High-grade steel with anti-corrosion coating

Finish:

Black powder coat

Mechanical Limits

1

Working Load Limit:

500 kg (1,100 lbs)

Dimensions (H x W x D)

2

:

254 mm x 128 mm x 137 mm

(10.0 in x 5.0 in x 5.4 in)

Net Weight

3

:

3.3 kg (7.3 lbs)

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Summary of Contents for VTX Series

Page 1: ...VTX SERIES A8 Rigging Manual ...

Page 2: ...RAL INFORMATION VTX A8 Rigging Manual Document Number 1000337284 Version C EN Distribution Date January 22 2021 Copyright 2021 by HARMAN International all rights reserved JBL PROFESSIONAL 8500 Balboa Blvd Northridge CA 91329 USA ...

Page 3: ...l sister companies VTX loudspeakers marry custom transducer design and in house manufacture breakthrough technologies and a com prehensive system approach to deliver a premium experience for all who come into contact with it from the FOH mixing engineer to the systems engineer rigger road crew warehouse manager and of course the audience Designed for operators of portable and fixed systems alike t...

Page 4: ...ay Calculator 3 14 5 2 Array LinkTM 15 5 3 Ground Stacked Arrays in LAC 3 16 6 A8 RIGGING SYSTEM OVERVIEW 17 6 1 Rigging Closeup 17 6 2 Angle Lock Mechanism 18 6 3 Angle Selection 19 7 A8 TRANSPORTATION 20 7 1 Installing VTX A8 Cabinets on a VT 20 7 2 Installing the Top Part of the VTX A8 VT 22 7 3 Storing the VTX A8 VT 23 7 4 Stacking the VTX A8 VT With the VT TOP 24 7 5 Stacking the VTX A8 VT 25...

Page 5: ...s and Move Pins to Storage 47 10 3 Repeat Steps to Disconnect the Next Four Cabinets 48 10 4 Repeat Steps to Disassemble the Array 49 11 MIXED ARRAYS WITH A8 AND B18 50 11 1 Attaching the Array Frame to the B18 50 11 2 Attaching A8 to B18 52 11 3 De Rigging the Array 55 11 4 Mixed Array Safety Note 55 12 THE VTX A8 SUSPENSION BAR 56 12 1 VTX A8 SB Suspension Bar Overview 56 12 2 VTX A8 SB Suspensi...

Page 6: ...Position 71 14 3 Angle Selection Plates 71 14 4 VTX B18 GND 72 14 5 Assembling Ground Stacked Arrays 73 14 6 Ground Stack Examples 76 14 7 Attaching the Base Plate Onto a Structure 77 15 SPECIFICATIONS 78 15 1 VTX A8 AF 78 15 2 VTX A8 AF EB 79 15 3 VTX A8 SB 80 15 4 VTX A8 VT 81 15 5 VTX A8 MF 82 15 6 VTX A8 BP 83 15 7 VTX RC500 84 16 CONTACT INFORMATION 85 ...

Page 7: ...l 2014 35 EC LOW VOLTAGE DIRECTIVE Applies to loudspeaker and lays down essential health and safety requirements EN60065 Tested at JBL Professional BRAND JBL Professional FAMILY NAME VTX A8 B18 loudspeaker and suspension accessories VTX A8 VTX A8 AF VTX A8 AF EB VTX A8 MF VTX A8 SB VTX A8 BP MODEL NAMES We HARMAN International declare under our sole responsibility that the product to which this de...

Page 8: ... damage The loudspeaker is easily capable of generating sound pressure levels SPL sufficient to cause permanent hearing damage to performers production crew and audience members Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB 14 Read the System Rigging Manual before installation and use of the product 2 2 GENERAL HARDW ARE INFORMA TION Any hardware used in an overhead...

Page 9: ... maximum recom mended load ratings Before suspending any speaker system always inspect all components enclosure rigging frames pins eyebolts track fittings etc for cracks deformations corrosion or missing loose damaged parts that could reduce strength and safety of the array Do not suspend the speaker until the proper corrective action has been taken Use only load rated hardware when suspending JB...

Page 10: ... followed for proper installation and use of the product TOOLS REQUIRED This symbol gives notice of tools that must be used for proper installation and use of the product 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 insp...

Page 11: ...ts when using dual Suspension Bars always check the design with LAC 3 Safe and maximum limits are only applicable to the specified accessory i e base plate or array frame When several accessories are combined for example ground stacked arrays with a base plate and subwoofers underneath the design should always be evaluated and checked with LAC 3 For additional information on B18 limits refer to th...

Page 12: ... A8 Rigging Manual 4 SYSTEM COMPONENTS VTX B28 VTX A8 SB Suspension Bar VTX A8 AF EB Extension Bar VTX A8 VT Vertical Transporter VTX A8 VT CVR Cover VTX B18 VTX A8 VTX A8 MF Mini Frame VTX A8 AF Array Frame ...

Page 13: ...Cover VTX B18 VT Vertical Transporter VTX RC500 Rotating Clamp 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 VTX A8 BP Base Plate ...

Page 14: ...ays and selected JBL accessories Configuration limits are calculated in real time for either suspended or ground stacked arrays based on array parameters such as the number of cabinets cabinet to cabinet splay angles overall array aiming and selected accessories In the case of suspended arrays a safety factor is cal culated to aid in designing systems that conform to local regulations Warnings and...

Page 15: ...mation and options are presented in an easy to understand layout The application can be downloaded free from the Apple App Store or Google Play Store Once the system designer or lead tech computes the angles for each hang in LAC 3 every member of the crew can get the correct information for angles attachment points trim height etc either by scanning the QR code from LAC 3 directly with their devic...

Page 16: ...e is an alert that the array is potentially unstable and a tipping hazard condition has been detected The user is responsible for securing the array to the ground stage or other structure that can provide additional support and is rated for the weight of the array This message may also be warning of external factors that can influence stability such as someone accidentally pushing the array Config...

Page 17: ...y angle selection is done while the system is still on the ground simply by moving the angle selection quick release pin QRP to the desired position When speakers are lifted off the VTX A8 VT carts an automatic Angle Lock mechanism engages to secure the cabinets to the selected position The cabinets maintain their splay positions until the user releases the Angle Lock mechanism at which point the ...

Page 18: ...ngle Lock mechanism consists of two main parts the red LOCKING LEVER and the black RELEASE BUTTON The system is locked when the locking lever is recessed into the cabinet and remains locked until the Angle Lock mechanism is released When it s time to de rig the system pressing the RELEASE BUTTON disengages the Angle Lock mechanism which allows the cabinets to collapse again to an angle of 10 degre...

Page 19: ... the quick release pins are not under load when the system is on the ground they can be moved freely to the desired position During transportation VTX A8 cabinets should always be set to 10 degrees This ensures the rigging system is locked preventing any accidental movement or unintended change of angle To select an angle remove the quick release pins from the storage position 10 and set them to t...

Page 20: ...nal VTX A8 VT CVR cover can be used for additional protection 7 1 INST ALLING VTX A8 CABINETS ON A VT VTX A8 cabinets should be installed on a VTX A8 VT one by one starting with the lowest cabinets in the array STEPS Use the four front and rear A8 quick release pins to secure the first VTX A8 cabinet to the VTX A8 VT Select the 10 degree STORAGE position for the cabinet and set the red locking lev...

Page 21: ...d the rigging arms engaged Use the two quick release pins on each side to secure the cabinet to the A8 cabinet below it Set the cabinet angle to the 10 degree STORAGE position and make sure the red locking lever is in the locked position Repeat this process until all four cabinets are secured on the VTX A8 VT 1 2 3 4 1 2 3 4 ...

Page 22: ... the carts during trans portation The flat top allows other gear to be stacked on top of A8 arrays traveling on VTX A8 VT carts for a more efficient truck pack STEPS Lower the VT TOP onto the top VTX A8 cabinet Be sure the four rigging corners of the A8 cabinet engage with the VT TOP Secure the VT TOP by installing the four quick release pins onto the top VTX A8 cabinet 1 2 1 2 ...

Page 23: ...icient storage STEPS Line up the corners of the VTX A8 VT and the VT TOP Lower the VT TOP onto the VTX A8 VT until all four corner connection points engage Use the four quick release pins to secure the VT TOP to the VT TIP The VTX A8 VT CVR cover can be stored in the empty space between the VT and VT TOP Fold the cover and place it in the VT before pinning the VT TOP 1 2 3 1 2 3 3 ...

Page 24: ...ogether for storage STEPS Rotate the VT wheels inward to point towards the opposite end of the cart Line up the wheels with the wells on the VT TOP Stack the two parts together Repeat until all VTs are stacked CAUTION Make sure the VT and VT TOP are pinned together and secure before stacking No more than four VTs should be stacked together 1 2 3 4 ...

Page 25: ...orage without using the VT TOP STEPS Rotate the VT wheels inward to point towards the opposite end of the cart Line up the wheels Stack the two carts together Repeat until all VTs are stacked CAUTION To maintain good balance and stability no more than eight VTX A8 VTs should be stacked together 1 2 3 4 ...

Page 26: ...The A8 cabinet connected to the VT TOP is fixed to a 15 degree angle cabinets above that can be adjusted to meet coverage needs Stacks using the VT TOP can be placed on a flat sur face such as the edge of a stage or ground stacked subwoofers like the G28 STEPS Remove the VT TOP from a stack of A8 cabinets and place it upside down on the ground Set the angle of the first A8 cabinet to the 10 degree...

Page 27: ...27 VTX A8 Rigging Manual CAUTION Always be certain ground stacked arrays are firmly secured to avoid tipping hazards 7 7 VT TOP GROUND ST ACKING EXAMPLES ...

Page 28: ...28 VTX A8 Rigging Manual 2 286 mm 90 in 2 434 mm 96 in 7 8 TRUCK PACKING 813 mm 32 in 457 mm 18 in ...

Page 29: ...to back or side by side suspension mode using the VTX A8 AF EB Extension Bar One Extension Bar is included with the frame and a second Extension Bar can be added to facilitate side by side suspension 8 1 ARRA Y FRAME OVERVIEW CARRYING HANDLE CABINET CONNECTION POINT EXTENSION BAR STORAGE POSITION LASER LIGHT EXIT HOLE EXTENSION BAR CONNECTION TABS CABINET CONNECTION POINT EXTENSION BAR CONNECTION ...

Page 30: ...wo shackles are used for suspension and one for cable relief Two included quick release pins connect the Extension Bar to the Array Frame TIP The VTX A8 AF Extension Bar is only compatible with 5 8 inch shackles Three 5 8 inch shackles are included with each Extension Bar and Array Frame CAUTION Always use high quality 5 8 inch rigging shackles made by reputable manufacturers Inspect all rigging c...

Page 31: ... STEPS Line up the Extension Bar with the connection tabs on the Array Frame Lower the Extension Bar on to the Array Frame Use the two included quick release pins to secure the Extension Bar to the Array Frame CAUTION Always use both included quick release pins to attach the Extension Bar to the Array Frame Inspect both connection points before suspending an array 1 2 3 ...

Page 32: ...in apart to maintain the structural integrity of the bar Even at 51 mm apart however the spacing is typically too coarse for precise sub degree aiming and a shackle position is needed between two holes The three attachment positions A B and C allow for two additional shack le positions between holes increasing the total shackle positions to 60 A B C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 The example ...

Page 33: ...e the Extension Bar on to the Array Frame Each A8 Array Frame can store two Extension Bars STEPS Align the Extension Bar lengthwise above the Array Frame ensuring that the side of the Extension Bar with the label is pointed upwards Slide the Extension Bar into place so that the two alignment locators from the bottom side of the Extension Bar seat into the storage position cutouts in the top of the...

Page 34: ... for the array The Extension Bar also can be attached in a reversed position which provides the maximum possible uptilt This orientation is typically used when the array is trimmed lower than the highest seat of the venue and required to point upwards The VTX A8 cabinet connected to the array frame is always set to the 4 position regardless of the extension bar orientation Pin Position 4 NORMAL RE...

Page 35: ...or mounting to the VTX A8 Array Frame The additional attachment tabs must be installed to the outer Extension Bar locations using the manufacturer supplied bolts and locking nuts TOOLS REQUIRED Attachment of the extension bar connection tabs is a one time operation To properly install the tabs a 1 2 inch wrench should be used for the nut and a 7 16 inch wrench for the bolts All necessary hardware ...

Page 36: ...s needed to attach the laser bracket All necessary hardware is included with the VTX A8 AF STEPS Secure the laser unit to the laser bracket with the included screws Make sure the laser unit is centered in the bracket before tightening the four screws that hold it Once the laser unit has been installed secure the laser bracket to the Array Frame with the remaining included M4 fasteners The Array Fr...

Page 37: ...nd B18 arrays The images below illustrate proper configurations for attaching VTX A8 Extension Bars and where suspension points sound be attached to them A suspension point should never be attached to two extension bars SINGLE POINT CAUTION When multiple suspension points are used always make sure all of them are evenly or properly loaded DUAL POINT FRONT TO BACK DUAL POINT SIDE BY SIDE FOUR POINT...

Page 38: ... release pins from their storage positions and place each into its respective attachment position The quick release pins should be attached from the inside of the Array Frame Once the Array Frame is secured to the top of the cabinet the Extension Bar can be attached Confirm correct orientation by consulting LAC and ensure that the correct A B or C position is attached using both of the included la...

Page 39: ... be found later in this document 9 1 PRESELECT THE ANGLES STEPS Using the quick release pins QRPs located on the Angle Selection Panels select the desired inter enclosure splay angles for all cabinets For each enclosure move the QRP from its 10 degree storage position to the desired position as indicated on the label If the desired angle is 10 degrees the QRP does not need to be moved 1 1 2 5 3 4 ...

Page 40: ...n be extended and locked while still on the ground This can make connecting flown cabinets to cabinets on the ground much easier since the rear rigging con nection points sit at a much higher elevation enabling them to connect more easily to the flown arrays The A8 cabinets are lightweight enough that angles can be locked simply by lifting each enclosure by its rear panel handles CAUTION If all en...

Page 41: ...ifts each cabinet will expand to the correct angle As each cabinet reaches the correct inter enclosure angle it stops ex panding When all cabinet angles are set and the array is suspended a short distance off the ground disconnect the Vertical Transporter by removing the two rear quick release pins followed by the front pins 9 3 SUSPEND THE FIRST ST ACK 1 2 1 2 ...

Page 42: ...ly touching Check that the attachment points are aligned then lower the suspended cluster until the front attachment points join together Insert the two front quick release pins 9 4 A TT ACH THE NEXT ST ACK CAUTION Always confirm that each cabinet is pinned to the same angle on both sides of the enclosure The top cabinet in each array should be pinned in accordance with the Array Frame and Extensi...

Page 43: ...until the two rear connection points join together Once touching insert the two rear QRPs to secure the clusters together If the angle of the flown cluster is too steep too much down tilt and the rear connection points are too far apart follow the steps shown below to safely connect the clusters 1 ...

Page 44: ...er the array so the front wheels of the VT touch the ground Lower the array until the rear attachment points engage then insert the two rear QRPs Once all four QRPs have been secured lift the array off the ground and remove the VT In some cases the angle of the flown array may be too steep to fully connect to the cluster on the ground This can happen when as sembling large arrays or when the frame...

Page 45: ...45 VTX A8 Rigging Manual 9 5 REPEA T UNTIL COMPLETED Repeat the previous steps until the entire array has been assembled ...

Page 46: ... to unlock the rigging mechanisms This enables the bottom four cabinets to collapse back to the 10 degree position once the array is lowered to the ground Attach the VT to the bottom cabinet Connect the two points at either the front or rear then lift the other side of the VT and attach the other two points 10 1 OPEN THE ANGLE LOCKS AND A TT ACH THE VT 1 2 3 3 1 2 ...

Page 47: ... A8 cabinets to the 10 degree STORAGE position Close all eight RED Locking latches Remove the rear QRPs joining the fourth and fifth cabinets from the ground These QRPs should move easily as the weight of the array is being held by the front wheels of the Vertical Transporter resting on the ground Raise the array and allow the four A8 cabinets to roll forward until the cart is resting safely on al...

Page 48: ...48 VTX A8 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 49: ...49 VTX A8 Rigging Manual 10 4 REPEA T STEPS TO DISASSEMBLE THE ARRA Y ...

Page 50: ...ARRA Y FRAME TO THE B18 The first step in this process is attaching the VTX A8 AF Array Frame to the top VTX B18 cabinet The array design used for this exam ple consists of two forward facing B18 subwoofers with eight A8 cabinets under them Below is the procedure for attaching the array frame to the first B18 STEPS For easiest attachment separate the Array Frame from the Extension Bar Remove the q...

Page 51: ...the first A8 cabinet 1 2 3 CAUTION All six quick release pins and rigging arms should always be used when connecting one B18 subwoofer to another Under no circumstances should any pin be left unused A8 cabinets can only be attached to the B18 rigging points corresponding to those connected to the array frame Normally these are the four forward most connection points With the frame properly connect...

Page 52: ...TEPS Follow the procedures in chapter 9 Deploying Standalone A8 Systems of this manual to assemble the A8 clusters Preset the angles of the A8 cabinets then use the rear panel handle to lift each cabinet until it extends to its final position Use your hands to pull up the top rigging arms until they fully engage The stack connected to the array frame does not need to be manually extended since the...

Page 53: ...ay Frame STEPS Raise the suspended cluster of VTX B18s cabinets and align the A8 cart of cabinets below the suspended cluster Once the clusters are aligned carefully lower the suspended cluster until the front or rear attachment points are nearly touching Check that the attachment points are aligned then lower the suspended cluster until the front or rear attachment points join Lower the array and...

Page 54: ... Insert the two front quick release pins With the front QRPs set use the electric hoist to raise the array Be aware that the lower cluster may swing forward slightly as it lifts off the ground Once the array is off the ground grab the lower cluster by the handle at the rear of the VT and gently pull back towards the rear of the array While doing this lower the array so that the front wheels of the...

Page 55: ...eate a rigid and secure structure when building mixed arrays with A8 and B18 cabinets each cabinet should always use all four of the connection points corresponding to the points connecting the array to the array frame It is recommended that all six connection points of the B18s be used at all times even though only four are under load in this situation For additional B18 configurations and safety...

Page 56: ...d then connecting to the suspension point for the rear of the array The SB can also be attached to the top cabinet of an array and used as a compact array frame Two VTX A8 SB Suspension Bars can be used one at the top of the array and one at the bottom for dual point applications and added aiming flexibility For more information on using the VTX A8 SB with the B18 refer to the B18 Rigging Manual 1...

Page 57: ...n connected to the bottom lowest cabinet in the array the array attachment tabs must be released from their storage positions in order to attach to a VTX A8 or B18 cabinet Remove the holding pins on either side of the SB and let the attachment tabs spring to their operating positions The attachment tabs can then be pinned to the VTX A8 or B18 cabinet using the cabinet s quick release pins ...

Page 58: ...cond motor point at the rear of the array The two motors are adjusted to achieve the desired array downtilt STEPS Follow the steps in chapter 9 Deploying Standalone A8 Systems to suspend the VTX A8 array using the hoist attached to the Array Frame Make sure the Suspension Bar attachment tabs have been extended to their operating positions so the SB can be connected to an A8 cabinet Use the VTX A8 ...

Page 59: ... Bar to attach it to the A8 cabinet The Suspension Bar should always be connected to the A8 s rear suspension points Set the A8 cabinet connected to the Suspension Bar to the 4º position Attach the motor to the Suspension Bar and lift the first stack of A8s Follow the instructions in chapter 9 Deploying Stand alone A8 Systems to suspend the A8 array After the entire A8 array has been assembled con...

Page 60: ...Suspension Bar as a bottom frame will move the array CoG between the two suspension points enabling almost any down angle to be achieved Example 2 With pull back However when using the motors for the two suspension points to adjust the array angle the pick point flexibility of the AF array frame is not needed Using a Suspension Bar at the top and another at the bottom yields the same outcome while...

Page 61: ...han using a VTX A8 AF when using the SB the center of gravity CoG of the array must perfectly line up with the shackle attachment position on the suspension bar If the CoG is in front of or behind the suspension bar aiming of the array will be incorrect Use LAC 3 to determine if this configuration is appropriate for a given array This configuration also supports side by side attachment for suspens...

Page 62: ...G with suspension bar The venue geometry in Examples 4 and 5 calls for an array design in which the array CoG is perfectly lined up with the rear suspension point of the top A8 enclosure Example 4 CoG with array frame In this case the flexibility of the Array Frame and Extension Bar is not needed and a Suspension Bar can be used instead of an Array Frame Example 5 CoG with suspension bar LAC Venue...

Page 63: ...top of a B18 only array Details on the Suspension Bar and B18 usage are available in the B18 Rigging Manual All mixed array configurations should be checked with LAC 3 for mechanical safety CAUTION The VTX A8 SB Suspension Bar should never be used at the top of an array when VTX A8 and VTX B18 products are used as part of the same array Always check with LAC 3 for mechanical safety TIP The VTX A8 ...

Page 64: ...lications although dual point is supported by using the two spreader bar side shackle positions The Mini Frame can be used in conjunction with the VTX RC500 rotating clamp allowing smaller A8 B18 arrays to be suspended from stan dard sized trusses or pipes The three pieces can be collapsed and pinned together for storage 13 1 MINI FRAME OVERVIEW CABINET CONNECTION POINT SPREADER BAR SPREADER BAR R...

Page 65: ...structions below to set the Mini Frame in storage mode STEPS First pin the two side arms together using the four quick release pins connected to the side arms It is not important which storage holes are used for the pins as this is just for storage With the two side arms pinned together use hole positions 1 and 22 to pin the spreader bar onto the side arms 1 2 SMALLER 1 4 PINS SMALLER 3 8 PINS ...

Page 66: ...ease pins installed from the outside of the Mini Frame With the side arms secured attach the spreader bar to the side arms using the two spreader bar quick release pins 1 2 3 CAUTION Always be certain that the two spreader bar quick release pins are fully seated and engaged before suspending an array Make sure to fully insert the QRPs into the spreader bar and check for correct installation by pul...

Page 67: ...ely the two side shackle positions can be used to facilitate dual point configurations When a single point is used the side shackle positions can be used for safety attachment and vice versa CAUTION Always make sure that the same hole position is used on both side arms Failing to use the same position on both sides can result in damaging the Mini Frame SINGLE POINT DUAL POINT SIDE BY SIDE ...

Page 68: ...f gravity of the B18 and is marked as such on the Mini Frame side arms It can be used to suspend B18s flat aimed parallel to the ground EXAMPLES Normal frame orientation with spreader bar set to position 15 creating downtilt Reversed frame orientation with spreader bar set to position 18 creating uptilt A B A B The Mini Frame can be attached to an array in either the standard rear or reverse front...

Page 69: ...e RC500 supports arrays of up to 500 kg 1 100 lbs and is compatible with array frames that support inch shackles such as the VTX A8 MF The RC500 is attached to the center shackle position of the Mini Frame and allows for 360 degree rotation For more information on the RC500 refer to the RC500 User Manual CAUTION Array weight must always be within the 500 kg capacity of the RC500 For more informati...

Page 70: ... The base plate includes one 50 mm 2 in through hole on each side for easy use with ratchet straps Configurations and load conditions for using the VTX A8 BP can be obtained using JBL s LAC 3 prediction software application 14 1 BASE PLA TE OVERVIEW M10 THROUGH HOLES X4 M20 ATTACHMENT SCREW WASHER 2 RATCHET STRAP OPENING ANGLE SELECTION BAR STORAGE POSITION FRONT A8 ATTACHMENT ANGLE SELECTION PLAT...

Page 71: ...on plates onto the base plate 14 3 ANGLE SELECTION PLA TES The Base Plate angle selection plates include nine pin positions allowing for a range of angles from 15 to 5 degrees in 2 5 degree steps This facilitates selection of the most appropriate position for establishing the required array down angle JBL s Line Array Calcu lator software is used to determine the best position and check array safe...

Page 72: ...the Base Plate is used in conjunction with the VTX B18 When the Base Plate is used with other VTX subwoofers like the VTX B28 different accessories may be needed such as the VTX B28 GND STEPS While the B18 is still on the ACC dolly remove each of the four corner QRPs slide the feet in place and restore the QRP With all four feet in place use the rear two handles on the B18 to flip the it onto the ...

Page 73: ...release pins Follow the instructions below to as semble the A8 ground stacked array The same steps are used regardless of the subwoofer type STEPS Place the Base Plate onto the top subwoofer in the array Use the included M20 knob to secure the Base Plate onto the subwoofer If B18s are used make sure all are pinned together and that either the stabilization feet or a VT cart is used at the bottom 1...

Page 74: ...the back of the A8 and position the angle selection plate at the desired location Pin the rear two corners 1 2 2 1 CAUTION Safe limits for ground stacked arrays always assume that the stacking surface floor and stage is flat Do not deploy ground stacked arrays on non flat surfaces to avoid tipping hazards ...

Page 75: ...ter cabinet angle for the first A8 and extend the rigging arm to set the angle on the first A8 Stack the next A8 on top pin the cabinets together and set the angle for the next cabinet Repeat steps 3 and 4 as needed to assemble the full array 3 4 5 3 4 5 ...

Page 76: ...76 VTX A8 Rigging Manual 14 6 GROUND ST ACK EXAMPLES VTX A8 BP VTX B28 VTX B28 GND VTX A8 ...

Page 77: ... This is especially useful for permanent installations or other fixed applications where a ground stacked A8 system is needed but not often moved In such sit uations the base plate is permanently attached to the structure and subwoofers are not used beneath the array For detailed drawings of the A8 Base Plate and the position and size of its holes refer to the VTX A8 Customer Drawings ...

Page 78: ...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 Construction High grade steel with anti corrosion coating Finish Black po...

Page 79: ...rials 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 Construction High grade steel with anti corrosion coating Finish Bl...

Page 80: ...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 Construction High grade steel with anti corrosion coating Finish Black powder coat Compatible Shackle Size 5 8 inch Mechanical Lim...

Page 81: ...r 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 Construction High grade steel with anti corrosion coating aluminum 18 mm 11 ply Finnish birch plywood Finish Black powder coat black DuraFlex Mechanical Limits Maximum Safe Limit 4 VTX A8 4 VTX A8 Dimensions H x W...

Page 82: ...ment 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 Construction High grade steel with anti corrosion coa...

Page 83: ... 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 Construction High grade steel with anti corrosion coating Fini...

Page 84: ...ment 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 Construction High grade steel with anti corrosion coa...

Page 85: ...han Dist Shenzhen 518067 China 400 166 7806 www harman com China HARMAN Professional India Prestige Technology Park Jupiter 2A Block 4th Floor Marathahalli Ring Road Bangalore 560103 India 1 800 208 8880 www harman com India HARMAN Professional Solutions 8500 Balboa Blvd Northridge CA 91329 USA 1 844 776 4899 www jblpro com U S A Technical Support 1 800 852 5776 HProTechSupportUSA Harman com www j...

Page 86: ...VTX A8 Rigging Manual ...

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