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Section 10: Warranty Information
The JBL Limited Warranty on professional loudspeaker products (except for enclosures) remains in effect for ve
years from the date of the rst consumer purchase. JBL ampliers are warranted for three years from thedate 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 specied below, your JBL Warranty covers all defects in material and workmanship. The following
are not covered: Damage caused by accident, misuse, abuse, product modication 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,
modied 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
difculties, 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
9/16/10 Visit us online at www.jblpro.com
EON
®
and Differential Drive
®
are registered trademarks of JBL/Harman
Speakers feed back and howl
when the microphone volume is
turned up
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.
Excessive gain
Reduce the gain at the mixer and move the microphone closer
to the sound source.
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- 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