®
GRAND TOURING SERIES
Automotive Loudspeakers
GTO302, GTO402, GTO502, GTO602, GTO603, GTO572, GTO573,
GTO962, GTO963, GTO803, GTO462, GTO462d & GTO4102 Owner’s Manual
GENUINE JBL
Installation of the GTO402speakers as shown in Figures 1a and 1b.
Figure 1a
Removable Mounting Ears on
GTO 402, 422
Bend up and down repeatedly
to break off or use tin snips.
Typical installation of the GTO962, 803, 963, 502,
and 402 speakers with grilles as shown in Figure 2.
Thank you for purchasing JBL's
GrandTouring Series multi-element
automotive loudspeakers. We’ve
• Some Toyota installations may require mounting ears to be
removed from opposite sides.
• Some European car installations may require all
four ears to be removed.
organized this manual to make your
installation as simple and trouble-free
as possible. Please read through it com-
pletely before proceeding. If, after having
read it, you decide that you would rather
leave installation to a professional,
consult your JBL GrandTouring Dealer.
Trim Ring
Figure 2
Mounting Ears Removed
Autosound at its Best
Your JBL GT Series multi-element
speakers are built to meet the same
rigorous standards of construction and
performance that have long established
JBL’s renowned home and professional
speakers.
Car Door
Grille
Screen
These speakers incorporate advanced
materials and construction especially
suited to the unique acoustic environ-
ment of modern vehicles.They are
engineered to provide excellent disper-
sion, wide frequency response, and high
power handling.
Note: The GTO462, 462d, 572, 573, 4102, and 302 are
designed for direct replacement of factory speakers.
Therefore they do not contain the grilles and trim ring
shown in Figure 2.
Installation of these models simply entails reversing the
steps taken to remove the original speakers.
Figure 1b
Two-Screw Mounting Configuration
01
Figure 3a
Mounting
Ring
Figure 3c
Installation of the 6-1/2" speakers
Hole
Cutout
as shown in Figures 3a, b, c.
Match Notch on
Speaker with
Notch on Trim Ring
Mounting
Hooks
Rotate
to
Lock
Foam
Gasket
Mounting
Slots
Grille
Screen
Grille
Trim Ring
Front View
Figure 3b
Rotate
to Lock
Foam
Gasket
Slots for
Mounting
Hooks
Mounting
Ring
Custom Door Mounting with Grille
Screw Patterns Fit European 170mm
Mounting Holes
Rotate
to Lock
Mounting
Hooks
Mounting for US 6-1/2"
Honda/Toyota
Factory Location
Rear View
Speaker Placement
Installation Warnings
andTips
• Be careful not to cut or drill into fuel
tanks, fuel lines, brake or hydraulic lines,
vacuum lines or electrical wiring when
working on your vehicle. Inspect behind
panels before you cut or drill.
Because of the GT Series speakers’ ver-
satile mounting options, there are many
placement options which will achieve
excellent sound quality in your vehicle.
Please consider the following to help you
get the most from your speakers.
1.The most spacious stereo image is
achieved when the left and right speakers
are placed as wide apart as possible.
2.The best center image will be achieved
when the distance from the left speaker
and the right speaker are as equal as pos-
sible from your listening position.This is
most easily achieved by placing the
speakers as far forward as possible.
3.Treble is directional in nature. This
means that high frequencies are reduced
as you move off the tweeter’s axis. If
possible, angle the speakers to be point-
ed across the car to the listener on the
opposite side.This will make each listener
slightly off-axis to the tweeter that is clos-
est to that listener, but on axis to the
most distant speaker, which helps com-
pensate for the fact that each listener is
always closer to one speaker than to the
other (see Figure 4). Choosing mounting
locations which satisfy all of the above
criteria will provide the most satisfying
performance.
• Make sure that the speaker will
physically fit in the mounting location.
If door mounting, check for adequate
clearance with the window in both closed
and open positions as well as for interfer-
ence with the window crank and power
window mechanism. If mounting else-
where, check for clearance around rear
deck torsion bars, glove box or other
structural elements.
• Do not mount speakers where they will
get wet.
• Make sure that it will be easy to run
connecting wires to the speakers.Trace
speaker wire paths before you undertake
mounting.
A Note on Power Handling
As a result of their high efficiency, all
JBL loudspeakers will produce reason-
able volume levels in the automotive
environment using very little amplifier
power. However, the use of a small
amplifier to attain very high volume lev-
els could lead to overdriving the amplifi-
er.This will generate high distortion lev-
els which can easily damage loudspeak-
ers, even if the rated power of the ampli-
fier is below the rated maximum power
handling of the loudspeaker!
Figure 4
System Design
A more advanced system design can be
achieved by adding a GT, GTX, GTi, or
equivalent subwoofer to your GT series
speakers. In this case the GT series multi-
element speakers will be used as high
and midbass frequency drivers and
should have their extremely low frequen-
cies blocked by electrical means. Active
or passive crossovers can be used in
order to achieve the best system fidelity
and widest dynamic range. A crossover
frequency of between 80Hz and 120Hz is
recommended for the best imaging and
widest dynamic range.
WARNING: Playing loud music over
120dB can permanently damage your
hearing.The maximum volume levels
achievable with JBL speakers combined
with high power amplification may
exceed safe levels for extended listening.
When listening at high volume levels,
always use hearing protection or
turn it down!
• Always disconnect the ground wire from
the battery before doing any work on the
vehicle.
CAUTION: Fuel tanks are located directly
beneath the rear deck in some cars.
Check for adequate speaker basket clear-
ance before considering this location!
05
Service
Declaration of Conformity
Should your loudspeaker ever need
service, return it to the JBL dealer from
whom it was purchased. If for some rea-
son this is impractical, call 800-336-4JBL
for your nearest warranty station. Do
not return products to the JBL factory
without prior authorization.
We, JBL Europe A/S
Kongevejen 194B
DK-3460 Birkerod
DENMARK
General Care
The loudspeaker grilles may be cleaned
with a slightly damp cloth.
declare in own responsibility, that the products
described in this owner s manual are in compliance
with technical standards:
Do not use any cleaners or solvents on
the grilles or the speaker drivers.
EN 50 081-1/1992
EN 50 082-1/3.1995
Safety Note
To avoid the dangers of accidental
suffocation, please properly dispose
of the plastic bag used in the speaker
packaging.
Steen Michaelsen
JBL Europe A/S
Birkerod. DENMARK. 2/98
JBL Consumer Products
250 Crossways Park Drive
Woodbury, NY 11797
8500 Balboa Blvd.
Northridge, CA 91329
800-336-4JBL (4525)
Part No. GTAUTOSUBOM
Made in USA
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