U s e r ’ s G u i d e
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CONTENTS
Important Safety Instructions............................................................. |
4 |
Precautions......................................................................................... |
5 |
Suspension of Loudspeaker Systems................................................ |
6 |
Watch for These Symbols.................................................................. |
8 |
PRX700 Series Speakers Declaration of Conformity......................... |
9 |
PRX700 Series Power Amplifier....................................................... |
10 |
Introduction To The PRX700 Series.................................................. |
11 |
System Specifications....................................................................... |
13 |
System Setup - Full-Range Models.................................................. |
16 |
System Setup - Subwoofers.............................................................. |
18 |
Application Examples........................................................................ |
20 |
Troubleshooting................................................................................ |
24 |
Contact Information........................................................................... |
26 |
Warranty Information......................................................................... |
27 |
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IMPORTANT SAFETY INSTRUCTIONS
1.Read these instructions.
2.Keep these instructions.
3.Heed all warnings.
4.Follow all instructions.
5.Do not use this apparatus near water.
6.Clean only with dry cloth.
7.Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8.Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9.Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13.Unplug this apparatus during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15.If Service Instructions are included in the Owner’s Manual: “CAUTION - THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED SERVICE PERSONNEL ONLY. TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.”
16.To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC receptacle.
17.“WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.”
18.Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.
19.The main plug of the power supply cord shall remain readily operable.
Care And Cleaning
PRX700 series systems may be cleaned with a dry cloth. Do not get moisture into any of the openings in the system. Ensure that the system is unplugged from the AC outlet before cleaning. In the event the DuraFlex finish is damaged a touch up kit can be obtained from JBL Professional (part number 363972-001).
THIS APPARATUS CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK OR HAZARD, DO NOT REMOVE CHASSIS, INPUT MODULE OR AC INPUT COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
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PRECAUTIONS
The PRX700 series speakers covered by this manual are not intended for use in high moisture environments. Moisture can damage the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to direct moisture. Keep speakers out of extended or intense direct sunlight. The driver suspension will prematurely dry out and finished surfaces may be degraded by long-term exposure to intense ultra-violet (UV) light. PRX700 series speakers can generate considerable energy.
When placed on a slippery surface such as polished wood or linoleum, the speaker may move due to its acoustical energy output. Precautions should be taken to assure that the speaker does not fall off a stage or table on which it is placed.
Stand Mounting Safety Precautions
Some PRX700 series models include a 36 mm receptacle cup to allow mounting on tripod stands or on a pole over subwoofers. 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.
•Always verify that the stand (or subwoofer/pole) is placed on a flat, level and stable surface and be sure to fully extend the legs of tripod type stands. Position the stand so that the legs do not present a trip hazard.
•Route cables so that performers, production crew, and audience will not trip and topple the speakers over.
•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 one PRX700 series speaker on a stand or pole.
•Always be cautious in windy, outdoor conditions. 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.
•The PRX735 should be pole-mounted on a PRX700 subwoofer using a pole no longer than 24” in length. (SS3-BK24 or SS4-BK24)
•JBL highly recommends that no more than 70 lbs of weight be placed on a speaker pole that is mounted to a PRX715XLF or PRX718XLF.
Suspension of Loudspeaker System
Before attempting to suspend your JBL loudspeakers, read and understand the following safety information.
IMPORTANT SAFETY WARNING!
The information in this section has been assembled from recognized engineering data and is intended for informational purposes only. 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. All information presented herein is based upon materials and practices commonto North America and may not directly apply to other countries because of differing material dimensions, specifications, and/or local regulations. Users in other countries should consult with appropriate engineering and regulatory authorities for specific guidelines. Correct use of all rigging hardware is required for secure system suspension. Careful calculations should always be performed to ensure that all components are used within their working load limits before the array is suspended. Never exceed the maximum recommended load ratings. Before suspending any speaker system always inspect all components (enclosure, rigging frames, pins, eyebolts, track fittings, etc.) for cracks, deformations, corrosion, missing, loose or 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 JBL suspendable loudspeaker models.
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SUSPENSION OF LOUDSPEAKER SYSTEMS
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 (available at http://www.jblpro.com/catalog/support/getfile.aspx?docid=296&doctype=3).
•Know the rules for safe rigging.
•Attend a safe rigging seminar, such as that presented by professionals like Rigging Seminars™ or by Chain Motor Hoist manufacturers like Columbus McKinnon Corp. (manufacturers of the C/M Lodestar).
•Meet and establish a relationship with a licensed mechanical or structural engineer. Get in the habit of asking them questions instead of guessing about their answers. Learn from what they tell you.
•Meet and discuss this aspect of your business with your Insurance Agent.
•Research and understand the codes, practices, and requirements in the venues where you intend to operate your sound system.
General Hardware Information
Any hardware used in an overhead suspension application must be load rated for the intended use. Generally, this type of hardware is available from rigging supply houses, industrial supply catalogs and specialized rigging distributors. Local hardware stores do not usually stock these products. Hardware that is intended for overhead suspension will comply with ASME B30.20 and will be manufactured under product traceability controls.
Compliant hardware will be referenced with a working load limit (WLL) and a traceability code.
Attachment to Structures
A licensed Professional Engineer must approve the placement and method of attachment to the structure prior to the installation of any overhead object. The following performance standards should be provided to the Professional Engineer for design purposes; Uniform Building Code as applicable, Municipal Building Code
as applicable, and Seismic Code as applicable.
The installation of the hardware and method of attachment must be carried out in the manner specified by the Professional Engineer. Improper installation may result in damage, injury or death.
Inspection & Maintenance
Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and routine maintenance to insure proper function ability. JBL suspendable loudspeakers must be inspected for fatigue at least annually or, if there has been significant seismic activity, immediately thereafter. The inspection shall include a visual survey of all corners and load bearing surfaces for signs of cracking, water damage, de-lamination, or any other condition that may decrease the strength of the loudspeaker enclosure. Accessory suspension hardware provided with or for the JBL loudspeakers must be inspected for fatigue at least annually.
The inspection shall include a visual survey of the material for signs of corrosion, bending or any other condition that may decrease the strength of the fastener. Additionally, any eyebolts shall be checked for possible spin-out of the enclosure.
For all other hardware and fittings, refer to the hardware manufacturer’s inspection and maintenance guidelines for process.
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.
Prior to suspending the system, an expert, trained and experienced in suspending speaker systems should inspect all rigging parts and components.
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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/getfile.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 qualified 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 qualified 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) 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.
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SUSPENSION OF LOUDSPEAKER SYSTEMS
The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated. “Dangerous Voltage” within the products enclosure that may be of sufficient magnitude to consitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the product.
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PRX700 Series Speakers Declaration of Conformity
Safety and EMC Compliance Specifications
EN 55103-1:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions
EN 55103-1:1997 Magnetic Field Emissions-Annex A@ 10 cm and 20 cm
EN 55022:2003 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class A
EN 55103-2:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity
EN 61000-4-2: A2:2001 Electrostatic Discharge Immunity (Environment
E2-criteria B, 4 kV Contact, 8 kV Air discharge)
EN 61000-4-3:2003 Radiated, Radio-frequency, Electromagnetic Immunity (Environment E2, criteria A) EN61000-4-4:2005 Electrical Fast Transient/Burst Immunity (criteria B)
EN 61000-4-5:2001 Surge Immunity (criteria B)
EN 61000-4-6:1996 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (criteria A)
EN 61000-4-11:2004 Voltage Dips, Short Interruptions and Voltage Variation
UL 6500 2nd Edition 1999 Audio/Video and Musical Instruments Apparatus for Household, Commercial, and Similar General Use
CAN/CSA-E60065-00 Audio, video and similar apparatus - Safety requirements
UL Compliance Specifications
CUL 60065 7th Ed. IEC 60065(ed.7), IEC 60065(ed.7);am1,
IEC 60065(ed.7);am2 EN 60065:2002/A1:2006/A11:2008/A2:2010/A12:2011
FCC Compliance Notice
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to collect the interference by one or more of the following measures.
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio / TV technician for help.
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