System Design - JBL GT4.0c Owner's Manual

System Design

10
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 separate ampli-
fiers to drive the tweeter and
midwoofers, you can bypass the
capacitor on the tweeter and the
coil on the midwoofer (Figure 9).
A more advanced system design
can be achieved by adding a GT,
GT x , GTi, or equivalent sub-
woofer to your component sys-
tem. 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. Cross-
over frequency recommendations
are given in the Specifications.
+ + Right
Left
– –
GTC
–
Midwoofers
–
–
In-line
Capacitor
GTC04
Tweeters
Left Right
Channel
Channel
GTC Component System
connected to speaker outputs of
a High-Powered Head Unit
Figure 7
Amplifier output
set at Full Range or
High Passed at f > 80Hz
- -
+ – – +
Left Right
GTC
– Midwoofers
–
–
In-line
Capacitor
GTC04
Tweeters
Left Right
Channel
Channel
GTC04 Connected to GTC Midwoofer,
GTC Midwoofer Connected to Amplifier
Figure 8