Harman Stereo Amplifier 518S User Manual

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Contents  
Section 1: Welcome To The  
Family ................................................................... 4  
Before You Begin - Important Information ................................................................... 5  
Section 2: Precautions  
Watch For These Symbols .......................................................................................... 6  
AC Power Requirements ............................................................................................. 6  
CAUTION .................................................................................................................... 6  
EON® Power Amplifiers - Operating Temperature ....................................................... 6  
Care and Maintenance ................................................................................................ 6  
Mounting / Suspending EON® Speakers ..................................................................... 7  
Stand Mounting Safety Precautions ............................................................................ 7  
Hearing Damage, Prolonged Exposure to Excessive SPL ......................................... 7  
EON® Series Speakers Declaration Of Conformity ..................................................... 8  
Section 3: Quick Start  
Packaging Contents .................................................................................................... 9  
Section 4: About the EON518S  
Applications ............................................................................................................... 10  
Features .................................................................................................................... 10  
EON518S Specifications ............................................................................................ 11  
Block Diagram ............................................................................................................ 11  
Back Panel ........................................................................................................... 12-14  
Section 5: Loudspeaker Placement and Suspension ............................................... 15  
Using the suspension points ..................................................................................... 16  
Section 6: Application Examples  
Simple PA Using Built-In Mixer EON515 ................................................................... 17  
Small PA Using External Mixer EON510 ................................................................... 18  
Simple PA Using External Mixer and Subwoofer EON510 - EON518S .................... 19  
Simple PA Using Built-In Mixer  
and Adding More Power EON315 - EON510 - EON518S .................................... 20  
PA Using Powered Mixer And Powered Subwoofers EON305 - EON518S .............. 21  
PA Using Powered Mixer And Powered Monitors EON305 - EON515 ...................... 22  
Daisy-Chaining a PA System EON315 - EON510 - EON515 .................................... 23  
PA System With Powered Mains and Floor Monitors EON510 - EON515 ................ 24  
Section 7: Connection Types  
Balanced Lines .......................................................................................................... 25  
Unbalanced Lines ..................................................................................................... 25  
Unbalanced Sources to EON Powered Loudspeakers ............................................. 25  
Cables and Connectors ........................................................................................ 25-26  
Section 8: Trouble Shooting ........................................................................................ 27  
Section 9: Contact Information ................................................................................... 28  
Section 10: Warranty Information ............................................................................... 29  
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Section 1: Welcome To The  
Family  
Thank you for choosing JBL Professional EON® Series loudspeakers. Since the launch of the very first EON  
systems in 1995 they have proven to be the loudspeaker system that is all things to everyone and as such  
remain the best selling powered speaker in professional audio history; congratulations on your choice!  
You have now just invested in the next generation of EON, and like the previous versions remain the portable,  
practical, and powerful choice of industry professionals as well as amateur enthusiasts alike. While retaining  
the durability and quality of previous generations, the new EONs also offer a host of improvements over the  
previous models. First and foremost are higher-quality components such as transducers with Differential Drive®  
technology, which perform better while weighing less. The built-in amplifiers are more powerful, the design  
more portable and user-friendly, and the addition of mounting and flying points add up to an even more useful  
and flexible package.  
In their quest to be ‘everything for everybody’, the EON Series loudspeakers offer unparalleled flexibility  
and scalability to provide a variety of solutions for every sound reinforcement need. There are five models in  
the series – four full-range systems and a subwoofer. Three of the full-range models are powered and one  
passive. Why passive? A passive version offers the acoustic and physical features to those who just want to  
upgrade their speakers.  
With proper care your EON Series speakers should provide you with many years of flawless performance,  
and are flexible enough to be a part of your sound reinforcement system even as it grows in scope.  
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Before You Begin - Important Information  
Before using your EON® speaker system please review the following for important  
information on safety and protection of your investment in quality loudspeakers.  
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 Instruction in 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 mains plug of the power supply cord shall remain readily operable.  
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Section 2: Precautions  
Watch For These Symbols  
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 constitute 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.  
AC Power Requirements  
Before plugging an EON® speaker into an outlet ensure that it is able to provide  
the appropriate AC power. EON speaker systems have been designed to  
automatically detect 115V or 230V AC mains voltage 50/60 Hz.  
DO NOT UNDER ANY CIRCUMSTANCES OPERATE THE UNIT WITH AN AC POWER SUPPLY LESS THAN  
100V OR GREATER THAN 240V. DOING SO MAY RESULT IN SERIOUS DAMAGE TO YOUR SPEAKER  
SYSTEM WHICH WILL NOT BE COVERED BY WARRANTY.  
A robust AC supply is necessary for maximum performance. If the supply is too weak the bass performance may  
be affected and if it sags (drops) too much the system may self-mute to protect itself. As soon as the appropriate  
AC supply is restored it will continue to operate. Plugging multiple systems into the same outlet and long  
extension cord runs may affect the AC supply to the systems.  
CAUTION  
In compliance with safety agency criteria and proper system operation, it is critical that the system  
installer observe all electrical safety practices at all times and provide proper earth grounding for all  
AC Power connections.  
EON® Power Amplifiers - Operating Temperature  
The design of the EON amplifier is such that it is very energy efficient and as a result does not get really hot.  
In the rare event that it does get too hot it will automatically shut down to protect itself. When its temperature  
has returned to within its operating range it will turn back on. A condition under which this may occur is when the  
system is operated in very high ambient temperatures and the heat sink on the rear of the enclosure is in direct  
sunlight. Always ensure adequate cooling and appropriate shade.  
Care and Maintenance  
While your EON speakers are rugged and will provide years of service, some common sense care in handling  
will prevent damage and preserve appearance.  
• If your speakers will be frequently moved, consider a padded carrying bag.  
• If your EON speakers have been subjected to prolonged exposure to extreme low temperatures, avoid  
subjecting them to heavy mechanical shock and warm the speakers up by playing at a low volume for one  
hour before playing at loud levels.  
• Keep the exterior of the speaker enclosure clean. Clean only with a dry cloth.  
• EON speakers are not intended for fixed installation in outdoor environments. Moisture can damage the  
speaker cone and surround, cause corrosion of electrical contacts, and create an electrical shock hazard.  
Protect your speakers from moisture. Avoid exposing the speakers to direct moisture. Any electrically  
powered device can produce dangerous shock hazards when wet or exposed to moisture. Keep speakers  
out of extended or intense direct sunlight. The driver’s integrity may be affected and finished surfaces will be  
degraded by long-term exposure to intense ultra-violet (UV) light.  
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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.  
Mounting / Suspending EON® Speakers  
EON speakers are designed for portable applications in which the speakers will be stacked directly on the floor,  
stage, speaker stands, or a solid, stable platform. When placed on a smooth surface such as polished wood  
or linoleum, the speakers may move due to acoustical energy output. Precautions should be taken to assure  
that the speaker does not fall off the stage or table on which it is placed. Optional accessory items are available  
from JBL Professional and after-market suppliers to facilitate suspension and wall /ceiling mounting of EON  
speakers. Only those items recommended by JBL Professional should be used. When using these items, review  
all enclosed documentation and carefully follow all instructions and safety precautions.  
CAUTION: Suspension of EON speakers should be done by qualified persons following safe rigging standards  
and practices. Unsafe mounting or overhead suspension of any heavy load can result in serious injury and  
equipment damage.  
CAUTION: When suspending this product carefully follow JBL instructions and local ordinances. Do not attempt  
to use unless you have read and understood all instructions including the JBL User’s Guide. Attachment of the  
loudspeaker to a supporting structure should be referred to a qualified professional.  
Stand Mounting Safety Precautions  
EON series full range 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:  
• EON speakers include a thumb-screw that must be tightened to secure the speaker to the tripod stand. Before  
mounting the speaker on the stand, be sure to loosen the screw so that it doesn’t prevent the pole from fully  
penetrating the socket.  
• 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 EON 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.  
Hearing Damage, Prolonged Exposure to Excessive SPL  
EON 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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EON® 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  
UL Compliance Specifications  
UL60065/C22.2 No. E60065:03/IEC 60065 7th Ed.  
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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Section 3: Quick Start  
Congratulations on your purchase of JBL Professional EON® Series loudspeakers! We know you are anxious to  
get up and running as fast as possible, which is why you are reading this section. The following will help you get  
set up as soon as possible.  
Packaging Contents  
Your EON518S system should include the following:  
1 x EON518S speaker  
1 x 10’(3m) IEC Power Cable  
1 x User’s Guide  
1. Refer to the Application Examples with EON518S in Section 6.  
2. Turn the LEVEL control fully counter-clockwise.  
3. Plug the XLR cable from the mixer into either INPUT A or B connectors, or both if using the Left and Right  
outputs from the mixer.  
4. POWER UP PROCEDURE  
The main power switch is located on the input panel on the back of the enclosure. Always ensure that the  
speaker system is the last thing you power up, and the first thing to turn off when operating your complete  
PA system. If speaker systems are daisy chained together always turn off the last system in the chain first.  
Power “on” is indicated by the illumination of the logo on the front of the enclosure and the amplifier power  
“on” LED.  
• First, switch on the power to the mixer, audio sources, or musical instruments that  
are feeding your EON.  
• Next, turn on the power switch (the power indicator will illuminate).  
• Reverse this process when shutting down your system.  
5. SET VOLUME  
• If you are using an audio mixing console, refer to the manufacturer’s instructions to properly  
set gain structure.  
• Turn up your sources to the level that will be used in performance and talk, sing or play into the system.  
• Bring the LEVEL control up (clockwise) until the desired volume has been reached and tonal balance  
of bass in the complete system.  
6. CHECK THE LIMIT LED - The LIMIT indicator flashes when the loudspeaker’s on-board amplifiers are  
approaching maximum output. Occasional flashes are normal for very loud operation. However, if the  
LIMIT LED stays illuminated, the sound may be distorted and it is an indication that more speakers or a  
lower performance volume may be required for your specific application.  
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Section 4: About the EON518S  
Applications  
• Live sound reinforcement, speech and vocals, music playback in entertainment,  
A/V, and institutional venues - especially when ease of use and portability are important factors.  
• Extending the low frequency output performance of powered and non-powered  
full-range speaker systems.  
• Optimized for complete compatibility with EON® full-range speakers.  
Features  
500 watt Powered High Performance Subwoofer System  
• True portability weighing only 29.5 kg (65 lb)  
Compact sub enclosure  
Designed handles with comfort rubber grips for easy transport  
18” Differential Drive® low-frequency driver with neodymium  
magnet for low-distortion and light weight.  
Stereo balanced loop-through outputs  
Integrated and switchable High Pass Filter on loop-through outputs  
Easy “daisy-chain” connections for extending the system  
Polarity reverse selector  
Integrated 36 mm pole mount socket for sub/satellite applications  
• Efficient Class-D amplifier technology  
Rugged DuraFlexfinish  
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EON518S Specifications  
System Type:  
Self powered 18", bass-reflex design  
36 Hz - 130 Hz  
Frequency Range (-10 dB):  
Frequency Response (±3 dB):  
Crossover Frequency:  
System Power Rating:  
Distortion:  
42 Hz - 100 Hz  
120 Hz (HPF switchable on outputs)  
500 W continuous, 1000 W peak  
Less than 0.1% at rated power  
129 dB  
Maximum SPL:  
Signal Indicators:  
Input Gain:  
Limit: Red LED indicates input overload condition  
Signal: Green LED indicates signal present  
- infinity to +4 dBu  
Input Impedance:  
Polarity:  
Nominal 20k Ohms (balanced)  
0° or 180° phase shift  
1 x JBL 268G 460 mm (18”) Differential Drive® integrated  
woofer with dual voice coils, 4 ohm load  
LF Driver:  
Enclosure:  
18 mm, plywood  
Suspension / Mounting:  
Finish:  
36 mm pole socket on top  
DuraFlex™ finish  
Grille:  
Powder coated perforated steel with acoustically transparent black screen backing.  
Balanced XLRs with loop through (stereo) to balance XLR satellite outputs.  
¼” Speaker level input.  
Input Connectors:  
XLR Pin Assignments:  
AC input:  
Pin 2 (+), Pin 3 (-), Pin 1 (GND)  
120 – 230v, 50/60 Hz  
Dimensions (H x W x D):  
Net Weight:  
617 x 569 x 652 mm (24.3 x 22.4 x 25.7 in)  
29.5 kg (65 lb)  
Block Diagram  
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Back Panel  
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Back Panel  
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Back Panel  
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Section 5: Loudspeaker Placement and Suspension  
The following guidelines will help you achieve optimum sound wherever you use your EON® loudspeakers:  
Raise the speakers as high as possible.  
For best results try to get the high frequency horn at least 2 to 4 feet above the heads of the audience. If the  
speakers are too low, the people in the back of the audience will not receive the best quality sound.  
Place the speakers between the microphones and the audience.  
Feedback occurs when the microphones pick up sound from the speakers and “feed” the sound back through  
the sound system. If space is limited, point the speakers away from the microphones to reduce feedback.  
Locate the speakers away from turntables.  
Low-frequency feedback occurs when the output of the speaker is picked up by the tone arm of the turntable  
and is re-amplified. A heavy, solid turntable base and shock mounting can also reduce this type of feedback in  
DJ applications.  
Use more speakers in large or highly reverberant spaces.  
Spreading speakers throughout these spaces will produce much better sound than trying to compensate with  
loudness level or equalization. For very long distances, the use of another set of speakers with time delay is  
recommended.  
Stand speakers upright for PA - Tilt the speakers back on the side for stage monitoring. Upright stance  
provides even coverage over a wide area. EON speakers are also designed with two slanted positions for  
stage monitoring applications.  
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Using the suspension points  
CAUTION: Suspension of EON® speakers should be done by qualified persons following safe rigging standards  
and practices. Unsafe mounting or overhead suspension of any heavy load can result in serious injury and  
equipment damage.  
CAUTION: When suspending this product carefully follow JBL instructions and local ordinances. Do not attempt  
to use unless you have read and understood all instructions including the JBL User’s Guide. Attachment of the  
loudspeaker to supporting structure should be referred to a qualified professional.  
CAUTION: Do not suspend speaker from pull-back point.  
Before suspending the system, inspect all components involved for cracks, deformations, corrosion and/or  
missing or damaged parts that could reduce strength and safety of the installation.  
1. Remove suspension point caps  
2. Insert load rated shoulder eyebolt with spacers and tighten appropriately  
Never suspend more than one EON system from its suspension points.  
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Section 6: Application Examples  
Simple PA Using Built-In Mixer  
Using the Mix/Loop function  
EON515  
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Section 6: Application Examples  
EON510  
Small PA Using External Mixer  
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Section 6: Application Examples  
EON510 - EON518S  
Simple PA Using External Mixer and Subwoofer  
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Section 6: Application Examples  
EON315 - EON510 - EON518S  
Simple PA Using Built-In Mixer And Adding More Power  
Using the Mix/Loop function  
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Section 6: Application Examples  
EON305 - EON518S  
PA Using Powered Mixer And Powered Subwoofers  
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Section 6: Application Examples  
EON305 - EON515  
PA Using Powered Mixer And Powered Monitors  
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Section 6: Application Examples  
EON315 - EON510 - EON515  
Daisy-Chaining a PA System  
Using the Mix/Loop function  
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Section 6: Application Examples  
EON510 - EON515  
PA System With Powered Mains and Floor Monitors  
Gigging with the built-in mixers only  
Using the Mix/Loop function  
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Section 7: Connection Types  
There are two basic types of audio system interconnections for audio signals: Balanced and Unbalanced.  
Your EON® can accept either type of input.  
Balanced Lines  
In audio, a balanced line is a three-conductor system in which the two signal wires carry an equal, but  
opposite voltage with respect to the ground wire. The ground wire acts only as a shield and does not carry  
any audio signal current. Outside interference (such as RFI - Radio Frequency Interference) is either  
shielded from the internal signal conductor, or if it gets into the cable is cancelled out by the opposite signals  
at the receiving end. Balanced connections are preferred for any longer cable runs.  
Unbalanced Lines  
Unbalanced cable is a two-wire system where the shield (ground wire) acts as one of the current carrying  
signal conductors. The center conductor enclosed by the shield is commonly known as the “hot” conductor.  
Unbalanced audio cables do not reject noise as well as balanced lines.  
Unbalanced lines are typical in home hi-fi type systems and on the outputs of electronic musical  
instruments. These work well if the distance between the components is short, the signal level is  
relatively high and all of the electronics used in the system are plugged into the same AC service.  
Unbalanced Sources to EON Powered Loudspeakers  
If you need to connect your EON speakers to an unbalanced source you have two options:  
• Use the LINE 1 and LINE 2 connectors. These inputs are balanced but will accept  
unbalanced inputs without the need for any special adapters.  
• Use an adapter or special cable  
Cables and Connectors  
Speakon® is a registered trademark of Neutrik AG.  
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Cables and Connectors (continued)  
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Section 8: Trouble Shooting  
Symptom  
Likely Cause  
What to do  
Speaker not connected  
to active AC power  
Verify that speaker is connected and that the circuit is on  
Switch on power and verify that power LED is on  
No sound  
Power not switched on  
Speaker power cable is faulty  
or improperly connected.  
• Re-seat the power cable at both ends.  
• Substitute a known-good power cable  
No sound, speaker is connected  
to working AC power but won’t  
come on.  
Blown fuse  
• Check fuse and replace with same type “spare fuse in holder”.  
Signal source  
(mixer, instrument, etc.)  
is not sending.  
• Check VU meters on the source mixer  
• Verify that the tape or CD is playing.  
• Use headphones to verify that the instrument is actually  
sending an audio signal  
No sound. Speaker comes on.  
• Disconnect and re-seat signal cables.  
• Replace suspected cable with a known-good cable  
Faulty cables and connections  
No sound with microphone  
connected directly to the  
MIC/ LINE input.  
The EON does not supply phantom power. Switch to a dynamic  
microphone, use a battery powered microphone (if possible),  
use an external phantom power supply for condenser type microphones.  
Microphone requires  
phantom power  
Signal sounds distorted and very  
loud, LIMIT light is lit most of the  
time.  
Excessive input signal, trying  
to exceed the capabilities of  
the speakers  
• Reduce the output level of the source.  
• Turn down the level controls on the speaker.  
• Use additional EON speakers.  
Review the Owner’s Manual for your mixer and adjust controls as needed.  
• Input sensitivity (gain)  
• Channel faders  
• Master faders Once this is done, review the instructions in the Quick Start  
section of this guide.  
Signal sounds distorted even at  
moderate volumes, LIMIT light  
is not lit.  
Mixer or other source  
is overdriven  
• Make sure that the MIC/LINE switch is in the LINE (disengaged) position.  
• Reduce the level settings at speaker. Review the Owner’s Manual for  
your mixer and adjust controls as needed.  
• Input sensitivity (gain)  
• Channel faders  
• Master faders  
Lots of hiss in the sound,  
the mixer controls are at  
very low settings.  
Improper gain structure  
Noisy source device  
Disconnect the devices that are connected to your speaker one at a time. If  
the noise goes away, the problem is with the source or the  
connecting cable.  
Noise or hiss heard at output.  
Improper A/C ground or  
faulty equipment connected  
to mixer input  
Disconnect or mute channels one at a time to isolate the problem. Refer to  
the owner’s manual of the faulty equipment for troubleshooting help.  
Hum or Buzz that increases or  
decreases when the mixer level  
controls are moved.  
Faulty cable between source  
equipment and mixer  
Substitute a known-good cable for the suspected faulty cable.  
Improper A/C grounding, ground  
loops  
• ‘Lift’ the audio ground by using an XLR/F to XLR/M adapter on one end.  
• Re-route audio cables away from AC power and lighting cables.  
• Use the balanced outputs (if available) of your mixer or source equipment  
to drive your EON speakers.  
• Use a “DI” (direct injection) box to convert your unbalanced equipment  
output to a balanced output.  
Excessively long unbalanced  
cable run  
Hum or Buzz  
Reduce the INPUT level controls and increase the output level of your  
source devices.  
Improper system gain structure  
The inputs from INPUT 1 and  
INPUT 2 aren’t coming out of the  
OUT connector  
MIX/LOOP SWITCH  
set improperly  
Set the MIX/LOOP SWITCH to the MIX position (depressed).  
The speaker connected to the OUT  
connector goes up in volume when  
I adjust the INPUT 3 control on the  
first speaker.  
MIX/LOOP SWITCH  
set improperly  
Disengage the MIX/LOOP OUT switch, Set to LOOP.  
Microphones are pointed into  
the speakers  
Move the speakers so they do not point at the microphone’s pickup pattern.  
Equalizer settings  
are incorrect  
Locate the feedback frequency and reduce it using the mixer EQ or an  
external equalizer.  
Speakers feed back and howl  
when the microphone volume is  
turned up  
Reduce the gain at the mixer and move the microphone closer  
to the sound source.  
Excessive gain  
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Section 9: Contact Information  
Mailing Address:  
JBL Professional  
8500 Balboa Blvd.  
Northridge, CA 91329  
Shipping Address:  
JBL Professional  
8500 Balboa Blvd., Dock 15  
Northridge, CA 91329  
(Do not return product to this address without first obtaining prior authorization from JBL)  
Customer Service:  
Monday through Friday  
8:00am -5:00pm  
Pacific Coast Time in the U.S.A.  
(800) 8JBLPRO (800.852.5776)  
On The World Wide Web:  
Professional Contacts, Outside the USA:  
Contact the JBL Professional Distributor in your area. A complete list of JBL Professional international  
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Section 10: Warranty Information  
The JBL Limited Warranty on professional loudspeaker products (except for enclosures) remains in effect for  
five years from the date of the first consumer purchase. JBL amplifiers are warranted for three years from the  
date of original purchase. Enclosures and all other JBL products are warranted for two years from the date of  
original purchase.  
Who Is Protected By This Warranty?  
Your JBL Warranty protects the original owner and all subsequent owners so long as: A.) Your JBL product  
has been purchased in the Continental United States, Hawaii or Alaska. (This Warranty does not apply to JBL  
products purchased elsewhere except for purchases by military outlets. Other purchasers should contact the  
local JBL distributor for warranty information.); and B.) The original dated bill of sale is presented whenever  
warranty service is required.  
What Does The 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 or neglect; damage  
occurring during shipment; damage resulting from failure to follow instructions contained in your Instruction  
Manual; damage resulting from the performance of repairs by someone not authorized by JBL; claims based  
upon any misrepresentations by the seller; any JBL product on which the serial number has been defaced,  
modified or removed.  
Who Pays For What?  
JBL will pay all labor and material expenses for all repairs covered by this warranty. Please be sure to save  
the original shipping cartons because a charge will be made if replacement cartons are requested. Payment of  
shipping charges is discussed in the next section of this warranty.  
How To Obtain Warranty Performance  
If your JBL product ever needs service, write or telephone us at JBL Incorporated (Attn: Customer Service  
Department), 8500 Balboa Boulevard, PO. Box 2200, Northridge, California 91329 (818/893-8411). We may  
direct you to an authorized JBL Service Agency or ask you to send your unit to the factory for repair. Either way,  
you’ll need to present the original bill of sale to establish the date of purchase. Please do not ship your JBL  
product to the factory without prior authorization. If transportation of your JBL product presents any unusual  
difficulties, please advise us and we may make special arrangements with you. Otherwise, you are responsible  
for transporting your product for repair or arranging for its transportation and for payment of any initial shipping  
charges. However, we will pay the return shipping charges if repairs are covered by the warranty.  
Limitation of Implied Warranties  
ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR  
PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY.  
EXCLUSION OF CERTAIN DAMAGES  
JBL’S LIABILITY IS LIMITED TO THE REPAIR OR REPLACEMENT, AT OUR OPTION, OF ANY DEFECTIVE  
PRODUCT AND SHALL NOT INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND. SOME  
STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND/OR DO NOT  
ALLOW THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS  
AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS,  
AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH VARY, FROM STATE TO STATE.  
JBL Professional  
8500 Balboa Boulevard  
Northridge, CA 91329 USA  
EON® and Differential Drive® are registered trademarks of JBL/Harman.  
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Part Number: 364822-001  
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