background image

DEPLOYING THE SYSTEM

The VRX932LA/VRX928LA are flexible speaker systems that can be deployed in ground-supported or 
suspended applications. The following information will help you set up your VRX932LA/VRX928LA system 
safely and effectively.

POLE AND TRIPOD SAFETY WARNINGS!

When using stands or poles, be sure to observe the following precautions:

• 

Check the stand or pole specification to be certain the device is designed to support the weight of the 

speaker. Observe all safety precautions specified by the manufacturer. 

• 

Be certain that the surface on which the system is to be stacked is flat, stable and solid.

• 

Route cables so that performers, production crew, and audience will not trip and topple the speakers. 

• 

Inspect the stand (or pole and associated hardware) before each use and do not use equipment with 

worn, damaged, or missing parts.

• 

Do not attempt to place more than two VRX932LA/VRX928LA loudspeakers on a stand or pole. 

• 

When mounting two VRX932LA/VRX928LA speakers on a pole or tripod, integral rigging hardware must be 

used to secure the speakers to each other.

• 

Always be cautious when deploying the system outdoors. Unexpected winds may topple a system. It may 

be necessary to place additional weight (i.e. sandbags) on the base of the stand to improve stability. Avoid 
attaching banners or similar items to any part of a speaker system. Such attachments could act as a sail 
and topple the system.

• 

Unless you are confident that you can handle the weight of the speaker, ask another person to help you 

get it onto the tripod stand or pole.

• 

One or two VRX932LA cabinets may be mounted onto either a JBL SS2-BK tripod stand or with the SS4-BK 

adjustable pole mount to their companion VRX918S or SRX718S subwoofers. 

Do not mount VRX932LA

cabinets on top of the compact VRX915S subwoofer! 

• 

One or two VRX928LA cabinets maybe mounted onto either a JBL SS2-BK tripod stand or their 

companion subwoofer VRX915S. The larger type subwoofer SRX718S/ VRX918S 
can also be used.

Single VRX932LA/VRX928LA

A single VRX932LA may be used on a tripod stand (JBL SS2-BK) or on a pole 
(JBL SS4-BK) over its companion subwoofer the VRX918S or the SRX718S. 
The use of a subwoofer is recommended for applications requiring more 
low-frequency power and extension. Usually, the Array Configuration Selector 
(ACS) switches on the input panel should be set to the "Short Throw (-3 dB)" 
position when a single speaker is used.

A single VRX928LA may be used on a tripod stand (JBL SS2-BK) or on a pole 
(JBL SS4-BK) over its compact companion subwoofer the VRX915S or the larger
VRX918S/SRX718S subwoofer models. 

The VRX932LA/VRX928LA includes a dual angle 36 mm pole mount socket. 
By selecting the appropriate pole socket and adjusting the height of the tripod or 
pole, optimum coverage may be achieved. Ideally, the audience should not be able to
see either he bottom or the top surfaces of the speaker. This will insure that all listeners
are within the "included coverage angle" of the loudspeaker. The rear pole-socket will 
position the speaker with the baffle 2.5° to the floor while the forward socket will 
position the speaker with the baffle angled down by 15°. System illustration shows the  
available JBL SS2-BK tripod stand. 

*NOTE:  VRX932LA-WH does not include pole mount features and is designed 
specifically for fixed installations.

17

Summary of Contents for VRX900 Series

Page 1: ...U s e r s G u i d e V R X 9 3 2 L A V R X 9 3 2 L A W H V R X 9 1 8 S V R X 9 1 8 S W H V R X 9 1 5 M V R X 9 2 8 L A V R X 9 1 5 S V R X A F V R X S M A F...

Page 2: ...and audience members Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB The VRX Series loudspeakers covered by this manual are not intended for fixed installation in outdoo...

Page 3: ...l rigging hardware a dual angle pole socket and an accessory array frame provide for a variety of mounting and suspension options NOTE The VRX932LA WH is designed for fixed install situations where wh...

Page 4: ...sure 18 mm 11 ply birch plywood Suspension Mounting Suspension requires optional VRX AF line array frame kit Dual angle 35 mm pole socket 10 mm eyebolt Finish Black DuraFlex finish Grille Powder coate...

Page 5: ...of larger line arrays The VRX928LA offers all the same features as the VRX932LA As with the VRX932LA the Array Configuration Selector ACS makes it possible to distribute the sound more evenly over the...

Page 6: ...n neodymium compression driver Nominal Impedance Passive 8 Ohms Bi amp LF 8 Ohms Bi amp HF 16 Ohms Active Tunings Tunings available at www jblpro com Enclosure 15 mm 25 mm multi ply birch plywood Susp...

Page 7: ...suspended arrays or ground supported applications The suspension system is designed for full compatibility with the VRX932LA line array speaker system and the VRX AF array frame NOTE The VRX918S WH i...

Page 8: ...4 BK pole Optional VRX AF line array frame kit or 10mm eyebolt Part 229 00009 01 Rectangular 18 mm 13 ply birch plywood Black DuraFlex finish Powder coated 16 gauge perforated steel with acoustical tr...

Page 9: ...ustable pole mount SS4 BK WARNING The VRX928LA is the only system intended for use with the VRX915S when utilizing the SS4 BK 9 597 41 mm 23 5 in 478 03 mm 18 8 in 318 01 mm 12 5 in 41 02 mm 1 6 in 31...

Page 10: ...ing Top mounted M20 threaded socket for optional pole SS4 BK Integrated flying hardware for use with array frame VRX SMAF Optional M10 eyebolt kit Transport Integrated steel handle with backing cup Fi...

Page 11: ...4 input connector in one of the handle cups An additional NL4 connector is mounted in the other handle cup for a convenient loop thru connection minimizing cable runs on stage The enclosure is constru...

Page 12: ...16 gauge perforated steel with acoustically transparent black screen backing Input Connectors Neutrik Speakon NL 4 x2 one on each end Dimensions H x W x D 629 mm x 432 mm x 324 mm 375 mm stage height...

Page 13: ...akers being suspended Please refer to the DEPLOYING THE SYSTEM section of this user guide for maximum allowable load limits when using the VRX AF VRX SMAF or VRX932LA AF frame Use of the array frames...

Page 14: ...suspended Please refer to the DEPLOYING THE SYSTEM section of this user guide for maximum allowable load limits when using the VRX SMAF frame The VRX SMAF array frame has been specifically designed to...

Page 15: ...e distribution of acoustic energy to the audience is far more uniform Amplitude shading of a VRX932LA VRX928LA array may be accomplished in passive or bi amplified systems Array Configuration Selector...

Page 16: ...mplished by adjusting the gain of the HF amplifier channels For extremely precise control over system performance it may also be desirable to dedicate an individual system controller output to each HF...

Page 17: ...r two VRX932LA cabinets may be mounted onto either a JBL SS2 BK tripod stand or with the SS4 BK adjustable pole mount to their companion VRX918S or SRX718S subwoofers Do not mount VRX932LA cabinets on...

Page 18: ...t panel should be set to the Short Throw 3 dB position while the upper speaker will be set to either Short Throw 3 dB or Mid Throw 0 dB Place the speakers on the pole or tripod one at a time Be sure t...

Page 19: ...r process Are You New to Rigging If you are new to rigging you should do the following Read and study JBL Technical Note Volume 1 Number 14 Basic Principles for Suspending Loudspeaker Systems availabl...

Page 20: ...nstalling the Array Frame The array frame is attached to the internal rigging of the VRX900 system using the provided Quick Release Pins Warning Do not use any substitute for these pins 1 Begin by att...

Page 21: ...stacked is flat stable and solid Suspension in Permanent Installations For permanent installation applications a VRX array may be suspended using M10 eyebolts Only load rated forged shoulder eyebolts...

Page 22: ...Please visit www jblpro com tunings for latest versions of our recommended system tunings or call customer service at Toll Free 1 800 852 5776 SYSTEM PROCESSOR TUNINGS 22 NOTES...

Page 23: ...JBL Warranty Cover Except as specified below your JBL Warranty covers all defects in material and workmanship The following are not covered Damage caused by accident misuse abuse product modification...

Page 24: ...JBL Professional 8500 Balboa Blvd Northridge CA 91329 USA Part Number 353551 005 03 2007...

Reviews: