JBL Speaker JBL PRX700 Series Speaker User Manual

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Resources
Adaptive Technologies Group McMaster Carr
562.424.1100 Various locations in the USA
1635 E. Burnett Street For a location near you, visit
Signal Hill, CA 90755 them at www.mcmaster.com
www.adapttechgroup.com
JBL Professional - Tech Note Vol. 1 No. 14
“Basic Principles for Suspending Loudspeakers”
www.jblpro.com/catalog/support/getle.aspx?docid=296&doctype=3
Safe Rigging
JBL suspendable version loudspeakers are supplied with built-in internal brackets. The systems are designed
to facilitate the suspension of the loudspeaker by a qualied person familiar with rigging hardware and industry
practices. Improper installation may result in damage, injury or death.
If you are unfamiliar with Safe Rigging Practices you will need to consult with a qualied person familiar
with rigging hardware and industry practices.
Working Load Limit
Working Load Limit for M10 Suspension Points:
The working load limit (WLL) of the JBL PRX700 Series loudspeakers utilizing M10 attachment points will be
maintained with a safety factor of 5:1, provided no more than 470lbs/213kg from 2 points equally loaded, or no
more than 235lbs/106kg maximum from a single suspension point, is utilized in conjunction with industry
recognized safe rigging practices and the guidelines established within this manual.
For permanent installation applications utilizing the M10 suspension points order JBL 229-00009-01.
This kit includes three M10 x 35 mm forged shoulder steel eyebolts with washers.
WARNING
Suspension of JBL loudspeakers must employ a minimum of two attachment points. When “bridling” a JBL
loudspeaker system, two legs of equal length must be used. The rear attachment points are pull-back points and
are intended only for use in adjusting the down-angle of the speaker enclosure. Only the top and bottom
attachment points are intended for use as suspension points.
Hearing Damage, Prolonged Exposure To Excessive SPL
PRX700 series loudspeakers are easily capable of generating sound pressure levels (SPL) sufcient 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.

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