Read JBL A3000GTi (serv.man5) User Guide / Operation Manual online
6
MAKING THE CONNECTIONS
A6000GTi SPEAKER
CONNECTIONS
CONNECTIONS
The A6000GTi is a 2-channel amplifier
designed to drive subwoofers only.
The left and right input signals are com-
bined inside the amplifier to
provide a mono output signal, no
matter which output mode is selected.
designed to drive subwoofers only.
The left and right input signals are com-
bined inside the amplifier to
provide a mono output signal, no
matter which output mode is selected.
The A6000GTi can be connected to
two independent speaker systems in
2-channel mode. It can be connected to
a combination of subwoofers
configured as a single load with its
channels bridged or connected in
parallel. Bridged channels will provide
high output voltage for driving loads
with a nominal impedance of 2 to 4
ohms. Connecting the channels in
parallel will provide the high current
necessary to drive loads of 1 to 2 ohms.
two independent speaker systems in
2-channel mode. It can be connected to
a combination of subwoofers
configured as a single load with its
channels bridged or connected in
parallel. Bridged channels will provide
high output voltage for driving loads
with a nominal impedance of 2 to 4
ohms. Connecting the channels in
parallel will provide the high current
necessary to drive loads of 1 to 2 ohms.
Included below are three application
diagrams that will help you plan
your A6000GTi installation. Figures 7
through 9 show how to configure the
JBL A6000GTi subwoofer amplifier for
bridged-mono, parallel-mono and
2-channel operation (see Setting Up the
GTi Amplifier).
diagrams that will help you plan
your A6000GTi installation. Figures 7
through 9 show how to configure the
JBL A6000GTi subwoofer amplifier for
bridged-mono, parallel-mono and
2-channel operation (see Setting Up the
GTi Amplifier).
IMPORTANT: If the nominal impedance
of the speaker system is close to 2
ohms, you may try both bridged and
parallel configurations to determine
which one performs better. Remember
to set the output mode switch to the
appropriate setting when changing
configurations.
of the speaker system is close to 2
ohms, you may try both bridged and
parallel configurations to determine
which one performs better. Remember
to set the output mode switch to the
appropriate setting when changing
configurations.
NOTE: For simplicity, Figures 7 through
9 do not show power, remote and input
connections (see page 5).
9 do not show power, remote and input
connections (see page 5).
A6000GTi Amplifier
(partial output panel)
Subwoofer
System
2 to 4
ohms
ohms
Subwoofer
System
2 to 4
ohms
ohms
Set Output Mode
to 2CH/BR
(on input panel)
See “Setting The Crossover”
on Page 8
to Adjust Crossover Controls
A6000GTi Amplifier
(partial output panel)
Set Output Mode
to PARALLEL
(on input panel)
See “Setting The Crossover”
on Page 8
to Adjust Crossover Controls
Subwoofer
System
2 ohms
or less
jumper
A6000GTi Amplifier
(partial output panel)
Set Output Mode
to 2CH/BR
(on input panel)
See “Setting The Crossover”
on Page 8
to Adjust Crossover Controls
Subwoofer
System
2 ohms
or more
Figure 7. The JBL A6000GTi
subwoofer amplifier is set
to bridged mode to drive a
subwoofer system. Only use
this mode when the nominal
equivalent or total impedance
of the speaker system is
2 ohms or greater.
subwoofer amplifier is set
to bridged mode to drive a
subwoofer system. Only use
this mode when the nominal
equivalent or total impedance
of the speaker system is
2 ohms or greater.
Figure 9. The JBL A6000GTi
subwoofer amplifier is set
to 2-channel mode to drive
a pair of subwoofers or
subwoofer systems with
nominal equivalent or total
impedances of 2 to 4 ohms.
subwoofer amplifier is set
to 2-channel mode to drive
a pair of subwoofers or
subwoofer systems with
nominal equivalent or total
impedances of 2 to 4 ohms.
Figure 8. The JBL A6000GTi
subwoofer amplifier is set
to parallel mode to drive a
subwoofer system. Only
use this mode when the
nominal equivalent or total
impedance of the speaker
system is less than 2 ohms.
subwoofer amplifier is set
to parallel mode to drive a
subwoofer system. Only
use this mode when the
nominal equivalent or total
impedance of the speaker
system is less than 2 ohms.
NOTE: A jumper is added
between the + terminals.
between the + terminals.
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