22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 1
EON15 G2 User’s Guide
Part Number: 981-00059-00 Rev. A
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 4
Welcome
Welcome to the family of discerning sound equipment users who have selected JBL Professional
loudspeakers. EON is a creation of JBL, the world leader in sound reinforcement. JBL sound
systems are used in some of the world’s most famous arenas, concert halls and clubs. In fact, JBL
speakers are the premier choice for today’s hottest touring acts and artists. You just can’t make a
more professional choice. This User Guide contains important information that will help you get the
most from your JBL EON loudspeakers so please take a moment to read it and be sure to keep it
in a safe place for future reference.
Congratulations and thanks from all of us at JBL Professional. You have invested in the best
portable performance system available.
PACKAGE CONTENTS
Your EON15 G2 system should include the following:
• 1 User Guide
• 1 EON15 G2 speaker
• 1 10’ (3 m) IEC Power Cable
• Customer Registration
AGENCY APPROVALS AND CERTIFICATIONS
This EON G2 System complies with all International Safety Requirements for Mains Operated
Professional audio equipment under IEC65, and Electromagnetic compatibility, Radio interference,
Emissions and Immunity requirements.
BEFORE YOU BEGIN - IMPORTANT INFORMATION
Before using your EON15 G2 speaker system please review the following for important information
on safety and protection of your investment in quality loudspeakers.
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. 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 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.
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 (see AVAILABLE
ACCESSORIES).
• 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.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 5
• Keep the exterior of the speaker enclosure clean. Use a damp rag with a general-purpose
household detergent. For grease and marking tape residue, use a damp cloth with isopropyl
alcohol or mineral spirits and wipe dry. Do not use powerful solvents like acetone, MEK, lacquer
thinner or 1,1,1-Trichloro-ethane (household cleaning fluid). These solvents will damage painted and
co-polymer surfaces of your speakers.
• 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
suspension will prematurely dry out and finished surfaces will be degraded by long-term exposure
to intense ultra-violet (UV) light.
Stand Mounting
Your EON speakers include a 35mm receptacle cup to facilitate mounting on tripod stands. When
using stands, be sure to observe the following precautions:
• EON speakers include a thumb-screw that can be tightened to lock 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 specification to be certain it is designed to support the weight of the speaker
(see specifications). 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, production 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 designed for a single speaker.
• 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.
Electrical Safety
All EON products are fitted with a detachable power cord (supplied) which connects to the AC
mains and the back panel of the loudspeaker. The power cord has an IEC female connector on
one end and a male mains connector on the other end. This cord is supplied specifically to
accommodate the different worldwide safety and electrical code requirements. The power cord
supplied with your EON product has a 3-pin type plug. Do not cut off or damage the grounding
plug. Like any electrical appliance, your EON powered speakers should not be used in water or
when wet.
ABOUT THE EON15 G2
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.
• Amplification, mixing, and monitoring for electronic musical instruments.
Features
• The second generation of one of the most successful and influential professional speaker
systems ever.
• 15” Differential Drive® low-frequency driver with dual neodymium magnet for low-distortion
and light weight.
• 1” throat diameter JBL compression driver with titanium diaphragm and ferro-fluid cooling.
• Bi-amplified 300 watts low-frequency and 90 watts high-frequency - actual power delivered
to the drivers.
• Built in 3-input mixer. One balanced mic / line input, two 1/4” phone line-level inputs.
Two-band equalization.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 6
• Balanced loop-through / mix output. “Daisy-chain” additional EON speakers or send the mixed
output to a mixing console.
• 90˚ x 60˚ (nominal) constant directivity horn.
• Thermomaster® Total Thermal Management System®. A single piece, cast-aluminum baffle
integrates the woofer frame, horn, and amplifier heat-sink. Air movement in the finned ports
dissipates heat - no internal or external cooling fans are required.
• Rugged, light-weight, black co-polymer enclosure with cast aluminum baffle.
• Integral 35mm pole mount receptacle with securing thumb screw.
• Multi-angle enclosure for front of house or stage monitor application.
• Tailored dynamic processing protects amplifiers and speakers from being over-driven without
producing extreme changes in frequency response as level varies.
• Extended low-frequency performance. Delivers powerful bass down to 39 Hz.
Specifications
Freq. Range (-10 dB):
Horz. Coverage (-6 dB):
Rated Maximum SPL:
Dimensions (H x W x D):
39 Hz - 18 kHz
90˚ nominal
Freq. Response (+3 dB): 42 Hz - 17 kHz
Vert. Coverage (-6 dB): 60˚ nominal
129 dB, @ 1 m (3.3 ft)
686 mm x 430 mm x 444 mm (27 in x 17 in x 17.5 in.)
Net Weight:
LF Driver:
21 kg (46 lbs.)
Integral frame with one 15” (380 mm) driver, dual neodymium
magnet, 2” Differential-Drive® voice-coil.
HF Driver:
JBL2418H-1 1” (throat diameter) compression driver with 1.75”
diameter titanium diaphragm. Ferro-fluid cooled.
Amplifier Power LF:
Amplifier Power HF:
Input 1 Sensitivity:
300 watts @ low-frequency driver impedance.
100 watts @ high-frequency driver impedance.
-44 dBu to -22 dBu for rated output
(Mic/Line switch in MIC position)
-12 dBu to +20 dBu for rated output
(Mic/Line switch in LINE position)
Input 2 & 3 Sensitivity:
Output Level:
-18 dBu to +20 dBu for rated output
+20 dBu (peak), Loop/Mix switch in MIX position
Audio Connectors
Input 1
XLR/F, balanced
Input 2 & 3
Crossover Freq.
Limiting
1/4” Phone, balanced (TRS)
1.5 kHz
Low frequency amplifier controlled by dynamic filiter
XLR/M, balanced.
Loop/Mix Out
EQ:
High Frequency Shelving, +15
Low Frequency Shelving, +15 dB
@ 120 Hz.
AC Input
110 - 230 VAC, 50 - 60 Hz., 175 watts rating per UL, dectachable IEC power cable
Frequency Response
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 7
Available Accessories
SS2-BK
Tripod Stand
ESK15
Suspension Kit for EON 15” models
BRK15
Bracket, adapts EON 15” models to OmniMount® brackets
Zippered, plush-lined Cordura® bag with wheels
Zippered, plush-lined Cordura® carrying bag.
EON15WB
EON15 BAG
QUICKSTART
QUICKSTART
1. Refer to the “Basic Sound Reinforcement System with Stage Monitors” diagram on page 10.
2. Turn the INPUT 1, 2, and 3 controls fully counter-clockwise.
3. Set the MIC/LINE switch.
• If a microphone will be connected directly to INPUT 1, set the MIC/LINE switch to the MIC
position (depressed). The MIC LED will illuminate when power is turned on.
• If a mixer, CD player, cassette tape, or electronic musical instrument (the “source”) will be
connected directly to INPUT 1, set the MIC/LINE switch to the LINE position (disengaged).
The MIC LED will not illuminate when power is turned on.
4. Set the EQ HF and LF controls to their center detented position.
5. Plug the power cable into a properly grounded 3-wire AC power.
6. Plug the XLR cable from the mixer or microphone into the INPUT 1 connector.
7. Connect unbalanced sources (if used) to the LINE 2 and LINE 3 input connectors.
8. POWER UP PROCEDURE
• First, switch on the power to the mixer, audio sources, or musical instruments that are
feeding your EON15 G2.
• Next, turn on the power switch (the front panel power indicator will illuminate).
• Reverse this process when shutting down your system.
9. 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 INPUT 1 control up (clockwise) until the desired volume has been reached. If you
are using a microphone, turn the INPUT 1 control up slowly to avoid feedback.
• If you are using the INPUT 2 and INPUT 3 inputs, bring the INPUT 2 and INPUT 3 controls
up until the desired volume has been reached.
10. CHECK THE PEAK LED - The PEAK indicator flashes when the loudspeaker’s on-board
amplifiers are approaching maximum output. Occasional flashes are normal for very loud
operation. However, if the PEAK 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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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 8
CONTROLS AND CONNECTIONS
The audio section of the EON15 G2 includes powerful features that
enhance the flexibility of your EON15 G2 speakers.
MIX
LOOP
Connectors
O
U
T
INPUT 1
P
U
T
This balanced input accepts a standard XLR (female) connector.
A broad range of signals (-44 dBu to +20 dBu nominal) from
microphones, audio mixing consoles, and electronic musical
instruments may be connected here. When using a single audio input
to the speaker, this is the input to use. The sensitivity of this input is
controlled by the MIC/LINE SWITCH and the INPUT 1 rotary control.
I
N
P
U
T
INPUT 2 & INPUT 3
These 1/4” phone jacks are intended for use with audio devices
including cassette tape, CD, MP3 players, computer sound-card
outputs, electronic keyboards, and electric/acoustic musical
instruments. INPUTS 2 and 3 are balanced (TRS) but will accept
unbalanced inputs with no special adapters needed. The level of
these inputs is controlled by the INPUT 2 and INPUT 3 rotary controls.
1
MIC
LINE
SIGNAL
OUT
This XLR (male) output connector works with the MIX/LOOP SWITCH
to provide a method of sending audio from your EON15 G2.
2
3
Switches
MIC/LINE
The MIC/ LINE switch effects only INPUT 1. It selects between two
sensitivity ranges. This switch is used to match the input sensitivity
of the EON15 G2 with the output level of the device connected to
INPUT 1. Depressing the MIC/LINE switch selects MIC (most sensitive).
HF
EQ
CAUTION: Before adjusting this switch, be certain to rotate the INPUT
1 control fully counter-clockwise. After the MIC/LINE switch has been
adjusted, slowly rotate the INPUT 1 control clock-wise until the desired
volume has been reached.
LF
PEAK
• Use the MIC position (depressed) when a microphone is connected to INPUT 1.
• Use the LINE position (disengaged) when a line level source such as an audio mixing console,
audio playback device, or electronic musical instrument is connected to INPUT 1.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 9
MIX/LOOP
This switch selects the source of the signal for the OUT connector.
CAUTION: Before adjusting this switch, be certain to set the input level control of any
equipment connected to this output to its minimum gain (least sensitive) setting.
• In the disengaged position, only the signal from the INPUT 1 connector is routed directly
to the OUT connector. Changing the other settings on the audio panel will not effect the
OUT signal. The INPUT 2 and INPUT 3 inputs will not be present at the OUT connector.
Use this setting when you want to feed multiple EON powered speakers the same signal.
MIX/LOOP
(Shown in “MIX” Position)
LOOP / MIX OUT
TO INTERNAL
AMPLIFIERS
INPUT 1
EQ
1
2
LF HF
2
3
3
• In the MIX position (depressed), a post-EQ blend of all inputs to the speaker (INPUT 1,
2, and 3) will be sent to the OUT connector. Any changes to input level settings or EQ will
affect the OUT signal. See the SYSTEM EXAMPLES section for details on how this mode may
be used.
Controls
INPUT 1
Adjusts the level of INPUT 1. Use this control to match the input sensitivity of the EON15 G2
to the output level of the mixer, microphone, or instrument connected to INPUT 1. It is a
common misconception that this control changes the power of a system. Your EON15 G2
will produce its rated output power no matter where this control is set. The INPUT 1 control
determines how much signal is required at the input in order to drive the system to full output.
INPUT 2 & INPUT 3
These controls adjust the level of the inputs connected to INPUTS 2 and 3.
LF EQ
This control allows up to 15 dB of cut or boost at 120 Hz. If the system seems too “boomy”
or bass heavy, rotate this control counter clock-wise. If the system sounds too “thin” or lacks
low-end power, rotate this control clock-wise. To set the low-frequency EQ to “flat” (no EQ
cut or boost), set this control to the center detented position.
HF EQ
This control allows up to 15 dB of cut or boost at 5k Hz. If the system seems too “strident”
or “tinny”, rotate this control counter clock-wise. If the system sounds too “dark” or lacks
“brilliance”, rotate this control clock-wise. To set the high-frequency EQ to “flat” (no EQ cut
or boost), set this control to the center detented position.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 10
Indicators
PEAK
The PEAK LED (Light Emitting Diode) illuminates to indicate that the system is approaching
clipping. The threshold for this light is actually about 2 dB below clipping. An occasional
flickering of this light on the loudest peaks is acceptable. If this LED is on for more than the
duration of brief dynamic peaks, the system is being overdriven. Continuously over-driving
the system will result in unpleasant and fatiguing distortion and may lead to premature failure
of your speaker system.
If the PEAK LED illuminates excessively:
• Reduce INPUT 1, 2, and 3.
• Reduce the output level of the mixer, musical instrument, or other source connected to
the speaker.
• If there is a great deal of LF EQ or HF EQ boost, return the controls to the “flat” (centered)
position.
SIGNAL
Illuminates to indicate a usable signal from INPUT 1.
MIC
This LED lights to indicate that the MIC/LINE switch is in the MIC (depressed) position.
VOLTAGE SELECTION AND FUSES
Changing Voltage
Your EON15-G2 will typically be set at the factory to accommodate the power mains voltage
in your area. Before you set up your EON15-G2 for the first time it is a good idea to verify that
the setting of the selector is appropriate for the power in your area. In the event that you do
need to change the voltage:
• Make sure that the speaker is powered off and the AC is disconnected from the speaker..
• Directly below the male IEC connector on the speaker is a voltage selector. Break the
factory-applied seal and slide the switch to the appropriate setting.
• Set the voltage selector switch to the 115V or 230V setting as required for your area.
• After having reconfirmed that the correct voltage is selected, reconnect the AC (IEC connector)
and power the unit up.
DO NOT UNDER ANY CIRCUMSTANCES OPERATE THE UNIT WITH THE WRONG VOLTAGE
SELECTED. DOING SO MAY RESULT IN SERIOUS DAMAGE TO YOUR SPEAKER SYSTEM
WHICH WILL NOT BE COVERED BY WARRANTY.
Fuse Replacement
The EON15 G2 has no user-serviceable fuses. Failure of fuses is most frequently a symptom
of problems requiring service by a competent technician.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 11
APPLICATION EXAMPLES
Basic Sound Reinforcement System with Stage Monitors
This is the basic live sound system. The optional tripod stands will get the speakers up above the
audience so the sound can project. The second pair of EON15P G2 speakers are used as stage
monitors. For maximum gain before feedback, position the monitors so that they do not point
into microphones.
INPUT 1
INPUT 1
Monitor or
Aux. Out
Line Out
Left & Right
Mixer
Loop / Mix switch in
“Loop” Position
OUT
INPUT 1
INPUT 1
The output connectors on your mixer may differ from the illustration.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 12
Vocal / Acoustic-Electric Guitar
Here’s a simple set-up for a musician using an acoustic-electric guitar with a stereo pick-up and
backing tracks to accompany live vocal performance. If stereo is not a requirement, simply omit
the 2nd speaker
Loop/Mix Switch
in “Loop” Position
OUT
INPUT 1
INPUT 2
INPUT 3
INPUT 1
INPUT 2
INPUT 3
Microphone
Acoustic-Electric
Guitar with
Stereo Output
RCA (shown)
or
1/8” (mini-phone) jack
Tape or CD
Health Club Instruction
For a simple to use system just add a headset style microphone for the instructor and a portable
CD player. Refer to the previous “Vocal/Acoustic-Electric Guitar” diagram and omit the guitar.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 13
DJ or Sound Reinforcement System with EON PowerSubs
Here’s a system with EON PowerSubs added to provide additional low-frequency power. If your mixer
has a SUM or MONO output, you can also drive the EON Powersubs from this output and use the
volume control for the mono for bass mix effects.
LOOP/MIX
SWITCH IN
LOOP
POSITION
LOOP/MIX
SWITCH IN
LOOP
POSITION
INPUT 1
INPUT 1
LOOP / MIX
OUT
LOOP / MIX
OUT
Output
Right
Output
Left
Mixer
INPUT
INPUT
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 14
DJ System with Passive Subwoofers
This system combines a pair of EON15 G2 powered speakers with externally powered
subwoofers for extra power at very low frequencies. Note that many, but not all DJ mixers use
RCA (phono) outputs as illustrated. Your DJ mixer may use another type of connector.
INPUT 1
INPUT 1
DJ Mixer
Output - Right
Output - Left
High Pass Output
Right
High Pass Output
Left
Electronic
Crossover
*
Low Pass Output - Left
Low Pass Output - Right
Amplifier
* Recomended crossover frequency = 80-150 Hz. (season to taste)
Keyboard Amplification and Mixing
In this set-up, the 3-channel mixer of the EON15 G2 combines the outputs from a digital piano,
a synthesizer and a sampler. The “LOOP / MIX” switch is set to the “MIX” position and the “OUT”
connector sends the combined signal to the main mixing console.
Digital Piano
Loop/Mix Switch
in “MIX” position
Synthesizer
Sampler
OUT
To Mixing Console
INPUT 1
INPUT 2
INPUT 3
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 15
TROUBLESHOOTING
Symptom
No sound
Likely Cause
What to do
Speaker not connected to active Verify that speaker is connected
AC power
and that the circuit is on
Power not switched on
Switch on power and verify that
power LED is on
No sound, speaker is connected Speaker power cable is faulty or
• Re-seat the power cable at
both ends.
• Substitute a known-good
power cable
to working AC power but won’t
come on.
improperly connected.
Blown fuse
• There are no user-serviceable
fuses in the EON15 G2.
Take your speaker to a
competent servicer.
No sound. Speaker comes on.
Signal source (mixer, instrument, • Check VU meters on the
etc.) is not sending.
source mixer
• Verify that the tape or CD is
playing.
• Use headphones to verify
that the instrument is actually
sending an audio signal
Faulty cables and connections
• Disconnect and re-seat signal
cables.
• Replace suspected cable with
a known-good cable
No sound with microphone
connected directly to the MIC/
LINE 1 input.
Microphone requires phantom
power
The EON15 G2 does not supply
phantom power. Switch to a
dynamic microphone, use a
battery in the microphone (if
possible), use an external
phantom power supply.
Signal sounds distorted and very Excessive input signal, trying to
• Reduce the output level of
the source.
• Turn down the level controls
on the speaker.
loud, PEAK light is lit most of
the time.
exceed the capabilities of the
speakers
• Use additional EON speakers.
Signal sounds distorted even at
moderate volumes, PEAK light
is not lit.
Mixer or other source is
overdriven
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.
Lots of hiss in the sound, the
mixer controls are at very low
settings.
Improper grain structure
• 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
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 16
Noise or hiss heard at output
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.
Hum or Buzz that increases or
decreases when the mixer level
controls are moved.
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.
Faulty cable between source
equipment and mixer
Substitute a known-good cable
for the suspected faulty cable.
Hum or Buzz
Improper A/C grounding, ground • “Telescope” the audio
loops
ground by using an XLR/F to
XLR/M adapter on one end.
• Re-route audio cables away
from AC power and lighting
cables.
Excessively long unbalanced
cable run
• 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.
Improper system gain structure
Reduce the INPUT 1, 2 and 3
controls and increase the output
level of your source devices.
The inputs from INPUT 2 and
INPUT 3 aren’t coming out of
the OUT connector
MIX/LOOP SWITCH set
improperly
Set the MIX/LOOP SWITCH to
the MIX OUT position
(depressed). See the CAUTION
in the “Switches” section of this
manual.
The speaker connected to the
OUT connector goes up in
volume when I adjust the INPUT
1 control on the first speaker.
MIXED/LOOP SWITCH set
improperly
Disengage the MIX OUT switch.
See the CAUTION in thedown in
“Switches” section of this
manual.
Speakers feed back and howl
when the microphone volume is
turned up
Microphones are pointed into the Move the speakers so they do
speakers
not point the microphone’s
pickup pattern.
Equalizer settings are incorrect
Locate the feedback frequency
and reduce it using the mixer EQ
or an external equalizer.
Excessive gain
Reduce the gain at the mixer and
move the microphone closer to
the sound source.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 17
REFERENCE
Connections - Balanced and Unbalanced
There are two basic types of audio system interconnections for audio signals: Balanced and
Unbalanced. Your EON15 G2 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 2 and LINE 3 connectors. These inputs are balanced but will accept unbalanced
inputs without the need for any special adapters.
• Use an adapter or special cable (see the section “Cables and Connectors”)
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 18
Cables and Connectors
XLR/F to XLR/M Microphone Cable
The standard cable for interconnection of microphone and line level signal
in professional audio systems.
• Microphone to mixer
• Microphone to EON15 G2 INPUT 1
• Professional audio mixer to EON15 G2 INPUT 1
• “Daisy chaining” EON15 G2 speaker systems
TRS (Balanced) 1/4” Phone to XLR/M
For connecting balanced devices with 1/4” connector to EON XLR input.
TRS (Unbalanced) 1/4” Phone to XLR/M For connection of instruments with unbalanced outputs to balanced XLR input.
• Sources (signal processors, electronic instruments) with 1/4” unbalanced outputs
to amps, processors, and powered speakers with balanced XLR/F inputs.
TS (Unbalanced) 1/4” Phone XLR/M
XLR/M to RCA (phono) cable
This cable is electrically identical to “TRS (unbalanced) 1/4” Phone to XLR/M
above and may be used interchangeably.
Connects consumer audio products and some DJ mixer outputs to professional
audio equipment inputs.
TS (Unbalanced) 1/4” Phone
(phono) cable
• Connects outputs of consumer audio equipment to unbalanced line inputs of
EON15 G2 and many mixers
• Connects unbalanced line outputs to many mixers to the inputs of consumer
audio recorder.
TRS1/4” Phone to dual 1/4” Phone
Splits a stereo output into separate left/right signals.
• Connects stereo electric guitar to two unbalanced audio inputs.
• Connects a headphone output to two unbalanced audio inputs.
• Change to a TRS mini-phone to connect to the output of portable CD
players and computer sound cards to a mixer or powered speakers.
Also used to connect signal processors to the “insert” of many mixing consoles.
XLR/F to XLR/M Audio Ground Lift
Used to “telescope” a ground to eliminate hum caused by “ground loops”. For
use only with balanced inputs and outputs.
XLR/F to XLR/M Microphone Cable
1
2
3
1 (shield)
2
3
TRS (Balanced) 1/4” Phone to XLR/M Cable
TRS (Unbalanced) 1/4” Phone to XLR/M Cable
TS (Unbalanced) 1/4” Phone to XLR/M Cable
XLR/M to RCA (phono) Cable
Tip
Ring
Sleeve
1 (shield)
2
3
Tip
Ring
Sleeve
1 (shield)
2
3
Tip
1 (shield)
2
3
Sleeve
1
2
3
Center
Shield
TS (Unbalanced) 1/4” Phone to RCA (phono) Cable
TRS 1/4” Phone to dual TS 1/4” Phone
Tip
Sleeve
Center
Sleeve (shield)
Tip
Tip
Ring
Sleeve (shield)
Sleeve
Tip
Sleeve (shield)
XLR/F to XLR/M Audio Ground Lift
1
2
3
1 (no connection)
2
3
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 19
Loudspeaker Placement and Mounting
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 of 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 on a delay
is recommended.
Stand speakers upright for PA - Tilt the speakers back 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.
BLOCK DIAGRAM
LOOP
MIX
PEAK
OUT
INPUT1
SIGNAL
HPF
90W
INPUT1
SUM
EQ
LINE
MIC
LPF
&
DYNAMIC
FILTER
300W
LOW HIGH
MIC
INPUT2
INPUT2
INPUT3
INPUT3
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 20
JBL LIMITED WARRANTY
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 is Covered by the JBL Warranty?
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.
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 21
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 CONTACT INFORMATION
Mailing Address
8500 Balboa Blvd.
Northridge California 91329
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
© Copyright 2000 JBL Professional
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 22
Notes
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Notes
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22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 24
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