JBL GT 4.0C User Manual / Operation Manual ▷ View online
05
Tweeter Output Level
The GTC04 is a very efficient
tweeter. If there is a need to
lower the tweeter output level,
a pair of 4 ohm / 5 watt resistors
can be connected in series with
the GTC04 as shown in Figure 3.
To avoid short circuits, make
sure that heat-shrink tubing or
electrical tape is used to cover all
exposed wiring.
The in-line crossover acts as a
high-pass filter as well as a pro-
tection device that keeps the
tweeter from being over-exerted
by low frequencies that it was not
designed to reproduce. Under
normal circumstances this
crossover should not be bypassed
or removed for any reason.
Bypass the installed capacitor
only when using an outboard
active crossover or a custom-
built passive crossover set above
5kHz.
IN-LINE CROSSOVER
(mylar capacitor)
(mylar capacitor)
4 ohms /
5 watt (min)
resistor
(sold separately)
5 watt (min)
resistor
(sold separately)
cut wire here
after capacitor
after capacitor
Figure 3
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06
Installation of the GT4.0c woofer as shown in Figures 4a and 4b.
Removable Mounting Ears on
GT4.0c
Bend up and down repeatedly
to break off or use tin snips.
to break off or use tin snips.
Figure 4a
Mounting Ears Removed
Figure 4b
Two-Screw Mounting Configuration
GT4.0c, 5.0c, 6.0c OM 7/16/98 9:54 AM Page 6
07
Mounting
Hooks
Hooks
Mounting
Ring
Ring
Foam
Gasket
Gasket
Mounting
Slots
Slots
Rotate
to
Lock
to
Lock
Rotate
to Lock
to Lock
Rotate
to Lock
to Lock
Slots for
Mounting
Hooks
Mounting
Hooks
Mounting
Hooks
Hooks
Mounting
Ring
Ring
Foam
Gasket
Gasket
Mounting for US 6-1/2"
Honda/Toyota
Factory Location
Honda/Toyota
Factory Location
Match Notch on
Speaker with
Notch on Trim Ring
Speaker with
Notch on Trim Ring
Grille
Screen
Screen
Hole Cutout
Grille
Trim Ring
Trim Ring
Figure 5b
Figure 5c
Front View
Custom Door Mounting with Grille
165/170mm Mounting Holes
Rear View
Figure 5a
Installation of the GT6.0c woofer
with the Intermount II (pat. pend.)
mounting system is shown in
Figures 5a, b, c.
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08
Hole Cutout
Clips
Mounting
Surface
Surface
Figure 5d
Figure 5e
Mounting the GT6.0c woofer in
installations using the Intermount II
clips shown in Figures 5d and 5e.
Front Mounting
Rear Mounting
GT4.0c, 5.0c, 6.0c OM 7/16/98 9:54 AM Page 8
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