MAKING THE CONNECTIONS
A3000GTi SPEAKER
CONNECTIONS
Included below are three application diagrams that will help you plan your A3000GTi installation. Figures 10 through 12 show how to configure the JBL A3000GTi amplifier for
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 driving a
Figure 10. The JBL A3000GTi 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 11. The JBL A3000GTi 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.
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) |
|
| jumper |
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
RSpeaker System
2 to 4 ohms
7