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APPLICATIONS – PX300.4
The JBL Px300.4 amplifier can be set up for stereo or
NOTE: For simplicity, Figures 6 and 7 do not show power, remote and input connections.
Figure 6. The JBL Px300.4 amplifier is set to stereo mode to drive front and rear pairs of full-range speakers.
NOTE: To limit bass sent to
Set REAR and FRONT
INPUT MODE to ST
(on input panel)
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| FRONT |
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| REAR |
GND | REM | BATT |
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| BRIDGED |
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NEON |
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| R | L | STEREO | R | NEON |
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| L | ||||
Px300.4 | POWER | FUSES | SPEAKER OUTPUTS |
| SPEAKER OUTPUTS |
Px300.4 | RF Speaker | LR Speaker |
(rear panel) | ||
| + | + |
Set REAR and FRONT | - | - |
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(on input panel) |
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| LF Speaker | RR Speaker |
ST | MO | FLAT | HP | LP | + | + |
| INPUT |
| MODE |
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| MODE |
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| - | - |
Figure 7. The JBL Px300.4 amplifier is set to drive a stereo component system and a subwoofer with a nominal impedance of 4 ohms or greater.
NOTE: To drive a pair of rear midbass speakers (instead of subwoofer), set INPUT MODE to ST,
Set FRONT
INPUT MODE to ST
(on input panel)
ST MO
INPUT
MODE
GND REM BATT
NEON
Px300.4 POWER
Px300.4
(rear panel)
Set REAR
INPUT MODE to MO
(on input panel)
ST MO
INPUT
MODE
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| FRONT |
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| REAR |
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| BRIDGED |
| NEON |
| R | L | STEREO | R | |
| L | ||||
FUSES | SPEAKER OUTPUTS |
| SPEAKER OUTPUTS |
RF
System
+ | Subwoofer |
- |
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+ |
LF |
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System | - |
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+ |
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- |
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Set FRONT | Set REAR | ||||||||
(on input panel) | (on input panel) | ||||||||
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FLAT HP LP | FLAT HP LP | ||||||||
| MODE |
| MODE |
See “Setting the Crossover(s)” on page 6 to set FREQ and SLOPE
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