JBL Professional JBL SR X Speakers 981 00052 02 User Manual

JBL SR-X User’s Guide  
Contents  
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
Rigging/Suspending SR-X Products  
Stand Mounting  
Stacking Speakers  
Hearing Damage  
Outdoor Applications  
Product Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Recommended Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Cables & Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Passive Systems  
Bi-Amp Systems  
Wire Gauges  
Input Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Crossovers & Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Specifications & Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
Part # 981-00052-02  
rev. E  
05/00  
Before You Begin  
Important information  
Before using your SR-X Series speaker system, please review the following for important information on  
safety and protection of your investment in quality loudspeakers.  
Rigging / suspending SR-X products  
SR-X Series speakers are designed for portable applications in which the speakers will be stacked directly  
on the floor, stage, speaker stands (SR4702X, SR4722X only), other speakers, or a solid, stable platform.  
SR-X Series speakers have no provisions for hanging, rigging or suspension.  
SR-X/F Series speakers are similar to SR-X and in addition have provisions for flying. SR-X/F versions  
should always be substituted for SR-X if flying or suspending the speaker system is required.  
ONLY SPEAKERS SPECIFICALLY DESIGNED FOR FLYING / RIGGING SHOULD BE SUSPENDED.  
For further information on suspending speakers contact JBL and request Technical Note Volume 1,  
Number 14 – “Basic Principles for Suspending Loudspeaker Systems”.  
Stand mounting  
Some SR-X models (SR4702X, SR4722X) include a receptacle cup to facilitate mounting on tripod stands.  
When using these stands, be sure to observe the following precautions:  
• Check the stand specification to be certain it is designed to support the weight of the speaker. Observe  
all safety precautions specified by the stand manufacturer.  
• Always verify that the stand is placed on a flat, level, and stable surface.  
• Route cables so that performers, crew, and audience will not trip over them and pull the speaker over.  
• Be sure to fully extend the legs of tripod type stands.  
• Position the stand so that the legs do not present a trip hazard.  
• Do not attempt to place more than one speaker on a stand.  
• 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.  
Stacking speakers  
Safety precautions should be observed when stacking SR-X speakers.  
• Verify that the floor or stage on which the speakers will be stacked is flat, level and solid.  
• When used outdoors, be aware of winds that could tip a tall speaker stack over.  
• Position the speakers to minimize the possibility that performers, crew, or audience will bump into them.  
• Under extreme, high-SPL conditions it’s possible that speakers on a highly polished surface can “creep.”  
(i.e. move due to the power of the acoustic energy) Precautions should be taken so that such creeping  
will not result in toppling of the speaker stack.  
Hearing damage, prolonged exposure to excessive SPL  
SR-X series loudspeakers are easily capable of generating sound pressure levels (SPL) sufficient to cause  
permanent hearing damage to performers, production crew and audience members. Proper precautions  
should be taken to avoid prolonged exposure to SPL in excess of 85dB.  
Exposure to moisture, outdoor applications  
While SR-X Series loudspeakers will work great for outdoor sound reinforcement, they are not “weather-  
proof” and are not intended for continuous exposure to extremes of humidity, temperature, salt air, or  
UV rays. Exposure to outdoor environmental conditions may result in premature failure of components as  
well as degradation to appearance.  
3
Product Range  
The SR-X Series consists of 11 popular configurations including subwoofers, front-of-house systems, and stage  
monitors. SR-X models include these features:  
• Metalized polyester capacitors are used throughout (instead of cheaper electrolytics) for higher power  
handling and lower distortion.  
• “Dual-mode” crossovers can be easily switched from full-range to bi-amplified operation. A tamper-resistant,  
internal mode selector provides a visible, external indication of the selected mode.  
• Dual driver subwoofers may be operated in parallel or discrete mode.  
• VGC™ (Vented Gap Cooling) low-frequency transducers control heat build-up to increase power handling and  
decrease power compression, providing more acoustic output for every watt of amplifier input.  
• 13 ply birch enclosures are finished in tough DuraFlex™ that resists the inevitable scuffs and dings a hard-  
working speaker suffers during a life of one-nighters.  
• Pure titanium diaphragm compression drivers are used in all two & three-way models for high power handling  
and reliability.  
• Optimized Aperture™ horn/driver combinations reduce throat distortion and provide smooth frequency  
response.  
• A non-resonant, full-length perforated metal grill provides protection for the components and a rich yet  
unobtrusive appearance.  
• Trapezoidal enclosures (except SR4715X / 4718X / 4719X / 4702X) for optimal coverage when splaying multiple  
cabinets.  
• Family footprint on the most popular models provides ease of stacking for larger, full-range systems  
Stage Monitor  
SR4702X  
12” two-way stage monitor: With 600 watts of power capacity and 95 dB  
sensitivity, the SR4702X delivers all the output needed to cut through high  
stage volumes. Its compact footprint won’t crowd the stage and the low  
profile won’t come between the performer and the audience. For increased  
flexibility, a tripod mount socket is provided to facilitate use as a front-of-  
house speaker. A “pass-thru” speaker connector allows cleaner connection  
of adjacent cabinets driven by the same amplifier.  
4
Product Range  
2-Way Systems  
SR4722X  
12” two-way compact speaker: A great choice for applications where compact size,  
ease of transport, and speaker stand “mountability” are required. For speech and many  
music uses, the SR4722X works great by itself. When more bass is needed, team it up  
with an SR-X Series sub-woofer. A pole-mount socket (35 mm) is provided for stand  
mounting.  
SR4725X  
15” two-way compact speaker: The 15” two-way system is  
a favorite for general music and speech applications. The  
SR4725X produces extended low frequencies in a trans-  
portable enclosure.  
SR4726X  
15” two-way high-output speaker: When the requirement is for very high acoustic  
output, extended low-frequency performance, and the convenience of a one-box  
system, chose the SR4726X. The large format 2447 compression driver coupled to  
an Optimized Aperture™ horn delivers great pattern control at very high levels with  
low distortion.  
Dual LF Systems  
SR4731X  
Dual 12” two-way system: With the combined  
power of two VGC LF motors and the cone area of  
dual 12” speakers, the SR4731X produces incredible  
amounts of mid-range power combined with lots of  
tight, punchy bass. The transition from the 12” LF  
drivers to the large format 2447 compression driver  
is very smooth. For extremely high-power applica-  
tions requiring earth-moving bass, use the SR4731X  
over the SR4719X subwoofer.  
SR4733X  
Dual 15” two-way system: The SR4733X delivers the power and performance of  
separate subwoofer / high-mid configurations combined with the simplicity of an  
all-in-one system. At home in a wide range of live sound and playback applica-  
tions, the SR4733X delivers very high acoustic output combined with lots of  
extended low bass.  
5
Product Range  
3-Way Systems  
SR4732X  
Dual 12” three-way system: Take the SR4731X, add the high-frequency sizzle of a  
2404 UHF driver and you get the ultimate speaker system for very high-level music  
playback in medium to short throw applications. In combination with the SR4719X  
subwoofer, this is an unbeatable system for DJ and dance club applications.  
SR4735X  
15” three-way system: For long-throw  
applications in which the power and additional  
control of a horn-loaded cone MF driver is  
desired, choose the SR4735X. This system  
boasts extremely wide frequency response and  
is a great choice as an arrayable, front-of-  
house reinforcement system.  
Subwoofers  
SR4715X  
Dual 15” subwoofer: For those who prefer the tight, punchy bass of a 15” sub, the  
SR4715X is the answer. The SR4715X has the same footprint as the other SR-X 15”  
two-way systems (including the dual LF models) for tight floor stacking.  
SR4718X  
Single 18” subwoofer: The single 2241 subwoofer pro-  
duces pounding bass down to 30 Hz. A top mounted,  
35 mm diameter socket is provided for an optional  
pole (JBL model SS3-BK) to elevate a speaker such as  
the SR4702X or SR4722X above your subwoofer. The  
socket is intended to accommodate speakers up to  
100 lbs (45 kg). Observe the stand mounting precau-  
tions outlined in the “Before You Begin” section of  
this User’s Guide.  
SR4719X  
Dual 18” subwoofer: Capable of delivering a wall-shaking 136 dB of acoustical  
output with a frequency range extending to 25 Hz, the SR4719X is the choice for  
large rooms, outdoor performance and high-level sound reinforcement or  
music playback. The rectangular enclosure is ideal for stacking any of the SR-X  
two-way systems for those who require uncompromising high level sound  
reproduction.  
6
Recommended Power  
The following table shows the recommended amplifier power for SR-X models. For applications in which  
the ability to reproduce brief, high-power transients is important, an amplifier capable of up to twice the  
power listed below may be used.  
Model  
Full-Range / Parallel (1)  
600W@8  
HF (2)  
100W@8Ω  
n/a  
LF (3) / Discrete (4)  
600W@8Ω  
600W@8x2  
n/a  
SR4702X  
SR4715X  
SR4718X  
SR4719X  
SR4722X  
SR4725X  
SR4726X  
SR4731X  
SR4732X  
SR4733X  
SR4735X  
1,200W@4Ω  
600W@4Ω  
n/a  
n/a  
1,200W@4Ω  
600W@8Ω  
600W@8Ω  
600W@8Ω  
1,200W@4Ω  
1,200W@4Ω  
1,200W@4Ω  
600W@8Ω  
600W@8x2  
600W@8Ω  
600W@8Ω  
600W@8Ω  
1,200W@4Ω  
1,200W@4Ω  
1,200W@4Ω  
600W@8Ω  
60W@8Ω  
100W@8Ω  
150W@16Ω  
150W@16Ω  
150W@16Ω  
150W@16Ω  
100W@8Ω  
1. Full-range / Parallel – Is the amplifier power required to optimally drive this speaker system when used in  
full-range (passive) mode. In the case of dual-driver subwoofer models, this is the power required to drive  
both transducers at the same time.  
2. HF – Is the amplifier power required to optimally drive the high-frequency section of this speaker system  
when used in bi-amp mode.  
3. LF – Is the amplifier power required to optimally drive the low-frequency section of this speaker system  
when used in bi-amp mode.  
4. Discrete – Is the amplifier power required to optimally drive an individual transducer in a dual  
transducer subwoofer.  
5. 1 or 2 Pass-Thru - This allows for the convenience of a single conductor cable from the amplifier rack to  
the speakers stack, this configuration supplies separate amplifier power to the subwoofer (ie 2) and to the  
mid-high speaker (ie. 1 Pass-Thru).  
7
Cable & Connections  
Each connector panel incorporates two Neutrik® Speakon® connectors. The second connector facilitates the  
ability to “loop through” to other SR-X speakers in the system. The diagrams below detail the cable-side  
connections.  
Passive Systems & Subs (Parallel mode)  
1
Full Range Signal  
or  
2 Core  
Sub Signal  
NL4 MPR Connector  
Bi-Amp Systems & Subs (Discrete mode)  
2
1
HF Signal or  
LF #2 Sub Signal  
LF Signal or  
4 Core  
LF #1 Sub Signal  
NL4 MPR Connector  
Wire Gauges  
Selection of the appropriate wire gauge is important to system operation. A cable that’s too light will result in  
amplifier power being wasted due to the series resistance of the cable and in loss of low-frequency performance  
due to degraded damping factor.  
2
mm  
.52  
Wire Gauge Chart for 0.5 dB Loss  
20  
15  
10  
5
1.65  
5.26  
16 Ohm Load  
8 Ohm Load  
4 Ohm Load  
16.77  
300  
5
50  
15  
100  
30  
150  
46  
200  
61  
250  
76  
1.5  
91  
8
Length of Run (ft.) / (m)  
Input Panel  
Internal Network Mode Selector  
All SR-X models are fitted with the internal network mode selector.  
The ability to select the mode of operation provides the sound system user flexibility in  
the system configuration, and also permits the system to be upgraded at a later date. By  
simply removing the input panel and changing the position of a heavy duty connector,  
the system can be configured as either a bi-amp or a passive system. After replacing the  
input panel, the network position is indicated on the connector plate panel. This pro-  
vides a truly tamper resistant solution to avoid the horrors of a mis-configuration.  
SR-X Series  
In passive operation, a system can be operated with a minimum of only one amplifier  
and no additional system controllers. In bi-amp operation, the system can be operated  
for maximum transducer performance and will require the use of additional amplifiers -  
and an electronic crossover (see “Crossovers and Controllers”). For Subwoofer systems  
with more than one transducer, the same ability to select the mode of operation is provided - but instead of  
bi-amp/passive selection, the input can be configured for either parallel woofers (4 ohm) with 1 or  
2
Pass-Thru or individual transducer access (2 x 8 ohm). This can be useful for assuring maximum power transfer  
from the amplifier to the transducers. The SRX4718 also has a mode selector for 1 or 2.  
Please Note: There are no passive network components in the circuit when the Bi-amp mode is selected.  
(Except: SR4732X and SR4735X which retain a crossover section between midrange and HF.)  
Changing the Input Mode Connector  
1. Remove 6 connector plate retaining screws  
and remove the plate.  
2. Turn plate over and locate the male connector.  
3. Pull out connector and firmly place in socket of desired  
system mode - you should be able to see the yellow  
indicator in the desired mode window.  
4. Replace plate and secure with 6 screws.  
Connector  
Please Note: For SRX4715X - SRX4719X, The connector is split  
to permit discrete mode operation.  
9
Input Configurations  
This section describes the different configurations of Input Connector Panel mode selections.  
The wiring connections from the Input Panel to the transducers change when the mode selector is moved.  
Please Note: Each line in the diagrams below represents a pair of wires. (E.g. both +1 and -1 connecting wires.)  
Sub Connector Plate w/ NL4 MPR Inputs  
SR4718X Pin 1 Hot (as shipped)  
SR4718X Pin 2 Hot *  
2
2
1
LF  
1
LF  
In  
In  
2
1
2
1
Out  
Out  
SR4715/19X Discrete Mode  
2
1
LF #2  
In  
2
1
LF #1  
Out  
SR4715/19X Pin 1 Hot (as shipped)  
SRX4715/19X Pin 2 Hot *  
2
2
LF #2  
LF #1  
1
LF #2  
1
In  
In  
2
1
2
1
LF #1  
Out  
Out  
* Units manufactured after April ‘00.  
2-Way Connector Plate w/ NL4 MPR Inputs  
Passive Mode  
Bi-Amp Mode  
HPF  
LPF  
2
1
2
1
HF  
HF  
LF  
In  
In  
2
1
2
1
Out  
LF Out  
3-Way Systems  
Passive Mode  
Bi-Amp Mode  
HPF  
BPF  
HPF  
LPF  
HF  
2
1
HF  
In  
MF  
2
1
MF  
In  
2
1
Out  
LPF  
LF  
2
1
10  
LF  
Out  
LPF = Low Pass Filter  
BPF = Band Pass Filter  
HPF = High Pass Filter  
Crossovers & Controllers  
DSC260 Digital System Controller  
SR-X Series loudspeaker systems may be operated in an optional bi-amplified mode. When used in this  
optional mode, an external, low-level crossover network is required. JBL Professional offers the DSC260 Digital  
System Controller for these applications. In addition to the crossover functions, the DSC260 provides signal  
(time/phase) alignment, equalization, and limiting. JBL has developed programs for the DSC260 that will  
optimize the performance of your SR-X Series system. These programs may be downloaded from the “Software  
may contact JBL Professional at the address listed elsewhere in this manual. The documentation included with  
your DSC260 will detail the process for loading new programs.  
Other Crossovers and Controllers  
The crossover designs of SR-X series speakers incorporate circuitry that tailors system response. When the  
internal SR-X crossovers are set to “Bi-amp Mode” this circuitry is bypassed. The JBL DSC260 programs for  
SR-X include the appropriate response tailoring. Other crossovers and system controllers may not have this  
tailoring and may require additional equalization in order to perform properly.  
11  
System Configurations  
There are many different possible configurations of systems within the JBL SR-X Series. This section shows a  
selection of key system configurations that will provide a basis for setting up any system, it includes: DSC  
controllers, amplifiers and wiring connections. It is very important that you are familiar with the previous  
sections of this User’s Guide and also the DSC260 system controller. Settings are available for the DSC260 for  
bi-amplified, and bi-amplified plus subwoofer, operation of the SR-X systems. Please note that when using  
the LF reinforcement systems, a suitable adjustment may be required in the DSC260 for accurate operation in  
the system. This is a straight forward procedure which is clearly outlined in the DSC260 User’s Guide.  
Note: Each line in the diagrams below represents a pair of wires. (E.g. both +1 and -1 connecting wire.)  
Full-range 2-Way  
Full Range  
1
Amplifier  
Bi-Amplified 2-Way  
See “Crossovers and Controllers” for important information.  
DSC260  
Output 6  
HF  
LF  
2
1
Amplifier  
Amplifier  
Input B  
Output 4  
12  
System Configurations  
Full-range 2-way with Sub (Parallel Mode)  
Output 4  
Full Range  
1
DSC260  
Amplifier  
Amplifier  
Input B  
Sub  
1
Output 2  
Full-Range  
1
M552  
Amplifier  
Amplifier  
HF  
LF  
1
2
Pin 2 mode  
Full-range 2-Way with Sub (using a single 4 conductor amp - speaker cable)  
(See page 9 and 10 for details on input configuration.)  
Bi-Amp 2-way with Sub (Discrete Mode)  
Output 6  
Output 4  
HF  
LF  
2
1
DSC260  
Input B  
Sub  
Sub  
2
1
Output 2  
13  
SR-X/F Flying Versions  
Suspension or flying speaker systems requires training and expertise. Improper rigging of a flying speaker  
may result in injury, death, equipment damage, and legal liability. This User Guide is intended to provide a  
skilled system rigger with resources needed to get the most from the SR-X/F speaker system. This User  
Guide will not provide the novice with the skills and training needed to safely fly a speaker system. If you  
lack the skills, training, and proper ancillary equipment to fly a speaker system do not attempt to do so.  
Obtain the services of a qualified rigger or get the proper training yourself. One source for training is:  
In the U.S call or write:  
(310) 834-5914  
In Europe call or write:  
(44) 0171-482-3300  
Fax: (44) 0171-482-4484  
102 Grafton Road  
RiggerMeister  
(888) RIG-MORE  
Fax: (310) 834-3042  
21000 South Wilmington Ave.  
Carson, CA 90810  
London NW5 4BA UK  
The SR-X/F models are equipped with ATM FLY-WARE® rigging hardware. Only hardware rated for overhead  
suspension and certified in accordance with appropriate safety standards should be used to fly speaker sys-  
tems. A source for such hardware and assistance in selecting appropriate hardware is:  
In the U.S call or write:  
(310) 834-5914  
In Europe call or write:  
(44) 0171-482-3300  
Fax: (44) 0171-482-4484  
102 Grafton Road  
London NW5 4BA UK  
(888) RIG-MORE  
Fax: (310) 834-3042  
21000 South Wilmington Ave.  
Carson, CA 90810  
In the U.S call or write:  
(909) 878-9104  
Fax: (909) 878-4248  
PO Box 1907  
Big Bear Lake, CA 92315-1907  
Sound  
Manufacturing  
Inc.  
14  
Example  
Each primary “load bearing”suspension point shall be rated for the entire load.  
Primary “Load Bearing”  
Facility Attachment Points  
(MIN: 5:1 Design Factor or Local Standard, Whichever Is Greater)  
Appropriate  
Track Fitting  
(User supplied, overhead  
suspension rated and certified)  
Secondary  
Suspension Point  
Appropriate Track Fitting  
(EG: AF-DSF)  
Working load limits: No more than four (4) high (vertical)  
The four (4) high vertical specification represents a static ratio of 7:1.  
15  
Specs • Warranty  
LF Driver Mid Driver HF Driver  
Horn  
Rated  
System  
Frequency  
Crossover  
Freq.  
Nominal  
Sensitivity**  
Dispersion  
(H X V)  
Weight  
Shape  
Dimensions  
Power* Impedance Range (-10 dB)  
SR4702X  
SR4715X  
SR4718X  
SR4719X  
2206H  
2226H (x2)  
2241G  
--  
--  
--  
--  
--  
--  
--  
--  
2426H  
--  
OASR  
--  
600  
1200  
600  
8
4
4
4
8
8
8
4
4
4
8
42Hz-20kHz  
35Hz-300Hz  
38Hz-300Hz  
30Hz-300Hz  
42Hz-18kHz  
35Hz-18kHz  
35Hz-20kHz  
39Hz-20kHz  
39Hz-21kHz  
37Hz-20kHz  
36Hz-20kHz  
1.3 kHz  
95dB  
100dB  
98dB  
101dB  
95dB  
98dB  
97dB  
98dB  
98dB  
100dB  
97dB  
85º x 85º  
29 kg  
64 lbs  
53.5 kg  
118 lbs  
39.9 kg  
88 lbs  
85.3 kg  
188 lbs  
27.2 kg  
60 lbs  
37.2 kg  
82 lbs  
48.5 kg  
107 lbs  
59.9 kg  
132 lbs  
62.1 kg  
137 lbs  
65.8 kg  
145 lbs  
50.8 kg  
112 lbs  
Multi-angle monitor 648 x 403 x 356  
25.5 x 15.9 x 14  
80 - 100 Hz  
recommended  
80 – 100 Hz  
recommended  
80 – 100 Hz  
recommended  
1.2 kHz  
--  
Rectangular  
Rectangular  
Rectangular  
Trapezoidal  
Trapezoidal  
Trapezoidal  
Trapezoidal  
Trapezoidal  
Trapezoidal  
Trapezoidal  
1067 x 584 x 653  
42 x 23 x 25.7  
--  
--  
--  
616 x 613 x 610 mm  
24.3 x 24.1 x 24 in  
765 x 1219 x 616  
30.1 x 48 x 24.3  
686 x 486 x 333  
27 x 19.1 x 13.1  
718 x 616 x 435  
28.3 x 24.3 x 17.1  
883 x 616 x 435  
34.8 x 24.3 x 17.1  
1067 x 616 x 435  
42 x 24.3 x 17.1  
1067 x 616 x 435  
42 x 24.3 x 17.1  
1219 x 616 x 435  
48 x 24.3 x 17.1  
946 x 616 x 479  
37.3 x 24.3 x 18.9  
2241H (x2)  
2206H  
--  
--  
1200  
600  
--  
SR4722X  
SR4722X/F  
SR4725X  
SR4725X/F  
SR4726X  
SR4726X/F  
SR4731X  
SR4731X/F  
SR4732X 2206H (x2) 2447J  
SR4732X/F  
SR4733X 2226H (x2)  
SR4733X/F  
SR4735X  
2417H  
2426H  
2447J  
2447J  
2404H  
2447J  
2426H  
OASR  
2370A  
85º x 85º  
90º X 40º  
2226H  
600  
1.1 kHz  
1.1 kHz  
1.2 kHz  
2226H  
2381  
2383  
2381  
2383  
2381  
600  
90º X 50º  
60º X 50º  
90º X 50º  
60º X 50º  
90º X 50º  
2206H (x2)  
1200  
1200  
1200  
600  
1.2 kHz,  
6 kHz  
1.2 kHz  
--  
2381  
2383  
MH1  
90º X 50º  
60º X 50º  
70º X 50º  
2226H  
M209-8A  
340 Hz and  
1.6 kHz  
SR4735X/F  
* IEC filtered random noise with a 6 dB crest factor  
**1W@1m (2.83V for 8ohms, 2.00V for 4ohms, ave'd 500Hz-5kHz)  
Specifications subject to change without notice  
DuraFlex  
Your SR-X loudspeaker system is finished in JBLs DuraFlex™. DuraFlex is tough and inherently flexible and it is  
extremely resistant to knocks, scratches and scuffs. The DuraFlex finish on your SR-X speakers is actually much  
tougher than the plywood to which it is applied.  
Note: SR-X enclosures are not paintable.  
In the event that cosmetic damage occurs to your speakers a DuraFlex touch-up kit (PN 16677) is available  
from JBL Professional.  
Warranty & Contacting JBL  
These products are designed and backed by JBL Professional, the world leader in sound reinforcement. For  
complete JBL warranty information, to order replacement parts or to ask for clarifications to this manual,  
contact JBL Professional:  
Within the United States contact:  
Applications Dept  
JBL Professional  
PO Box 2200  
8400 Balboa Blvd.  
Northridge, CA 91329  
In the USA you may call Monday through Friday, 8:00 am to 5:00 pm Pacific Coast Time:  
(818) 894-8850  
In other areas throughout the world: Contact the JBL Professional Distributor in your country.  
A list of JBL Professional Distributors and U.S. Service Centers can be attained from the JBL Professional website:  

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