GTO 5.0c MKII - JBL Car Audio User Guide / Operation Manual. Page 4

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04
Component Placement
Because of the JBL Component System’s
small size and extremely versatile mount-
ing options, there are an almost infinite
number of placement options to achieve
excellent sound quality in any vehicle.
Please consider the following statements
to help you get the most from your 
system. 
1. The most spacious stereo image is
achieved when the left and right speaker
systems are placed as wide apart as pos-
sible.
2. The best center image will be achieved
when the distance from the left speaker
and the right speakers are as equal as
possible 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. The
angle mounts will allow the GTO4 tweeters
to be pointed across the car to the listener
on the opposite side. This will make each
listener slightly off-axis to the tweeter that
is closest to that listener, which helps to
compensate for the fact that the listener is
always closer to one tweeter than to the
other (see Figure 6).
The best system integration is achieved
when the tweeter is mounted close to the
midwoofer speaker. This helps smooth
the transition from the midrange and
tweeter crossover point.
Choosing mounting locations which satis-
fy all of the above criteria will provide the
most satisfying performance.
Figure 6
System Design
There are a variety of system options
available with the Component System.
The simplest configuration is to use them
full range with their built-in passive
crossovers by connecting them to the
output of a head unit or an amplifier
(Figures 7 and 8).
If you want to build your system using
active (electronic) crossovers, with sepa-
rate amplifiers to drive the tweeter and
midwoofers, you can bypass the capaci-
tor on the tweeter and the coil on the
midwoofer (Figure 9).
A more advanced system design can be
achieved by adding a GT, GTX, GTi, or
equivalent subwoofer to your component
system. In this case the component 
system will be used as high and midbass
frequency drivers and should have their
extremely low frequencies blocked by
electrical means. Active or passive cross-
overs can be used in order to achieve the
best system fidelity and widest dynamic
range. Crossover frequency recommen-
dations are given in the Specifications.
+
+
Left
Right
Left
Channel
Right
Channel
In-line
Capacitor
 GTO4
Tweeters
GTC Component System
connected to speaker outputs of
a High-Powered Head Unit
GTC
Midwoofers
+
+
Left
Right
Left
Channel
Right
Channel
In-line
Capacitor
GTO4 Connected to GTC Midwoofer,
GTC Midwoofer Connected to Amplifier
 GTO4
Tweeters
-
-
GTC
Midwoofers
Amplifier output
set at Full Range or
High Passed at f > 80Hz
Figure 7
Figure 8
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