Output Load Switch - JBL A6000GTi Owner's Manual

MAKING THE CONNECTIONS
A3000GTi SPEAKER Figure 10. The JBL A3000GTi
CONNECTIONS
amplifier is set to bridged
mode to drive a subwoofer
Included below are three application
system. Only use this mode
diagrams that will help you plan your
when the nominal equivalent
A3000GTi installation. Figures 10
or total impedance of the
through 12 show how to configure
speaker system is 2 ohms
the JBL A3000GTi amplifier for
or greater.
bridged-mono, parallel-mono and
2-channel operation (also see
Setting Up the GTi Amplifier).
NOTE: For simplicity, Figures 10
through 12 do not show power, remote
and input connections (see page 5).

OUTPUT LOAD SWITCH

The Output Load switch is used to
optimize amplifier performance when
Figure 11. The JBL A3000GTi
driving a full-range signal. Set the
amplifier is set to parallel
switch according to the nominal
mode to drive a subwoofer
impedance of the load: Use the
system. Only use this mode
4-ohm mode when driving loads
when the nominal equivalent
with a nominal impedance greater
or total impedance of the
than 2 ohms and the 2-ohm mode
speaker system is less than
when driving loads with a nominal
2 ohms.
impedance of 2 ohms or less.
NOTE: A jumper is added
between the + terminals.
Figure 12. The JBL A3000GTi
amplifier is set to stereo
mode to drive a pair of full-
range speaker systems with
nominal equivalent or total
impedances of 2 to 4 ohms.
Set Output Mode A3000GTi Amplifier
to BRIDGE
(partial output panel)
(on input panel)
See "Setting The Crossover"
Subwoofer
on Page 8
System
to Adjust Crossover Controls
2 ohms
or more
Set Output Mode A3000GTi Amplifier
to PARALLEL
(partial output panel)
(on input panel)
See "Setting The Crossover"
Subwoofer
on Page 8
System
to Adjust Crossover Controls
2 ohms
or less
Set Output Mode A3000GTi Amplifier
to STEREO
(partial output panel)
(on input panel)
See "Setting The Crossover"
L Speaker
on Page 8
System
to Adjust Crossover Controls
2 to 4
ohms
jumper
R Speaker
System
2 to 4
ohms
7