JBL SRX Owners manual

SR-X Series Users Guide

Part Number: 981-00052-04 Rev A

Before You Begin - Impor tant Information
Product Range
Specifications and Recommended Power
Cable and Connections
Input Panel
Input Configurations
Crossovers and Controllers
System Configurations
SR-X/F Flying Versions
JBL Warranty and Contact Information

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CONTENTS

The exclamation point within an equilateral triangle is
intended to alert the users to the presence of impor­tant operating and maintenance (servicing) instruc­tions in the literature accompanying the product.

The lightning flash with the arrowhead symbol, within
an equilateral triangle, is to alert the user to the
presence of insulated “dangerous voltage”within the
products enclosure that may be of sufficient magni­tude to constitute a risk of electric shock to humans.

CAUTION:TO REDUCE THE RISK OF ELECTRON­IC SHOCK - DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INSIDE. REFER SERVIC­ING TO QUALIFIED PERSONNEL.

ATTENTION: POUR EVITER LES RISQUES DE
CHOC ELECTRIQUE, NE PAS ENLEVER LE COU­VERCLE. AUCUN ENTRETIEN DE PIECES
INTERIEURES PAR L’USAGER. CONFIER L’EN­TRETIEN AU PERSONNEL QUALIFIE. AVIS: POUR
EVITER LES RISQUES D’INCENDIE OU D’ELEC­TROCUTION, N’EXPOSEZ PAS CET ARTICLE A
LA PLUIE OU A L’HUMIDITE.

The IEC fuse symbol pictured at the left represents
an approved user replaceable fuse.When replacing
a fuse, make sure to replace with only the correct
type and fuse rating.

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 a dry cloth.

7. Do not block any ventilation openings.Install in accordance with
manufacturers instructions.

8. Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding­type plug. A polarized plug has two blades with one wider than the
other. A grounding-type 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 your outlet, consult a
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 the apparatus.

11. Only use attachments / accessories specified by the manufacturer.

12. Use only with a car t, stand, 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 un-used for
long periods of time.

14. Refer all servicing to qualified service personnel. Ser vicing is
required when a apparatus has been damaged in any way, such as
power-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. To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture.

Explanation of Graphic Symbols

Important Safety Instructions

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN!

DO NOT EXPOSE

TO RAIN OR MOISTURE!

ATTENTION

RISQUE DE CHOC ÉLECTRIQUE

NE PAS ENLEVER!

NE PAS EXPOSER Á

LA PLUIE NI Á L'HUMIDITÉ!

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BEFORE Y OU BEGIN

Welcome to the family of discerning sound equipment users who have selected JBL Professional loudspeakers.
This Users Guide contains important information that will help you get the most from your JBL speakers so
please take a few moments to read it and be sure to keep it in a safe place for future reference.

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 tr ip 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. sand-

bags) 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.

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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 distor tion 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, SR4718X, SR4719X, SR4702X) 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.

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Two-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

transportable 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,Two-Way 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
applications 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 applications, the SR4733X delivers very high

acoustic output combined with lots of extended low bass.

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