JBL POWER SERIES Px300 4 User Manual

car audio  
power amplifier  
owner’s manual  
THANK YOU  
for purchasing a JBL Power Series amplifier.  
®
In order that we may better serve you should you  
require warranty service for your new amplifier, please  
retain your original purchase receipt and return the  
enclosed warranty registration card.  
APPLICATIONS – BPx MODELS  
To the right are several application  
diagrams to help plan your subwoofer  
system installation. Figures 1 through 3  
show how to configure the JBL Power  
Series subwoofer amplifiers (models  
BPx500.1, BPx1100.1 and BPx2200.1)  
for 2-channel, bridged-mono and  
Set OUTPUT MODE  
to 2CH/BR  
CH  
1
CH  
2
2
CHANNEL  
(on input panel)  
BRIDGED  
NEON  
PARALLEL  
*
BPx Amplifier  
(partial rear panel)  
PARALLEL  
2CH/BR  
OUTPUT MODE  
SPEAKER OUTPUTS  
SEE MANUAL FOR PARALLEL CONNECTION  
*
See “Setting the Crossover(s)” on page 6  
parallel-mono operation (also see  
“Setting the Output Mode” on page 6).  
to adjust X-OVER controls  
(on input panel)  
X-OVER  
FREQ  
NOTE: For simplicity, Figures 1 through  
3 do not show power, remote and input  
connections.  
Figure 1. The JBL Power Series  
32Hz 320Hz  
subwoofer amplifier is set to  
2-channel mode to drive a pair  
of subwoofers.  
NOTE: If the nominal impedance  
of your speaker system is close to  
2 ohms, be prepared to try both  
bridged and parallel configurations to  
determine which performs better.  
12dB 24dB  
SLOPE  
Subwoofer  
Subwoofer  
Set OUTPUT MODE  
to 2CH/BR  
CH  
1
CH  
2
2
CHANNEL  
(on input panel)  
BRIDGED  
NEON  
PARALLEL  
*
BPx Amplifier  
(partial rear panel)  
PARALLEL  
2CH/BR  
OUTPUT MODE  
SPEAKER OUTPUTS  
SEE MANUAL FOR PARALLEL CONNECTION  
*
See “Setting the Crossover(s)” on page 6  
to adjust X-OVER controls  
(on input panel)  
Figure 2. The JBL Power Series  
X-OVER  
FREQ  
subwoofer amplifier is set to  
bridged (mono) mode to drive  
a single subwoofer. Use this  
mode only when the nominal  
impedance of the speaker  
system is 2 ohms or greater.  
32Hz 320Hz  
12dB 24dB  
SLOPE  
Subwoofer (2 ohms or greater)  
Set OUTPUT MODE  
to PARALLEL  
CH  
1
CH  
2
2
CHANNEL  
(on input panel)  
BRIDGED  
NEON  
PARALLEL  
*
BPx Amplifier  
(partial rear panel)  
jumper  
PARALLEL  
2CH/BR  
OUTPUT MODE  
SPEAKER OUTPUTS  
SEE MANUAL FOR PARALLEL CONNECTION  
*
See “Setting the Crossover(s)” on page 6  
to adjust X-OVER controls  
(on input panel)  
X-OVER  
FREQ  
Figure 3. The JBL Power Series  
subwoofer amplifier is set to  
parallel mode to drive a single  
subwoofer. Use this mode only  
when the nominal impedance  
of the speaker system is less  
than 2 ohms.  
32Hz 320Hz  
12dB 24dB  
SLOPE  
Subwoofer (less than 2 ohms)  
NOTE: A jumper is added  
between the + terminals.  
3
APPLICATIONS – Px600.2  
Figure 4. The JBL Px600.2  
amplifier is set to stereo mode  
to drive a pair of full-range  
speakers.  
The JBL Px600.2 amplifier can be  
set up for stereo or bridged-mono  
operation, as shown in Figures 4 and 5.  
GND  
REM  
BATT  
BRIDGED  
STEREO  
NEON  
NEON  
R
L
NOTE: For simplicity, Figures 4 and 5  
do not show power, remote and input  
connections.  
POWER  
FUSES  
SPEAKER OUTPUTS  
Px600.2  
Px600.2  
(rear panel)  
Set MODE to FLAT;  
INPUT MODE to ST  
(on input panel)  
X-OVER  
FREQ  
32Hz 320Hz  
FLAT HP LP  
MODE  
MO  
ST  
12dB 24dB  
SLOPE  
INPUT  
MODE  
R Speaker  
L Speaker  
FREQ and SLOPE have no effect  
Figure 5. The JBL Px600.2  
amplifier is set to bridged  
(mono) mode to drive a single  
subwoofer. Use this mode only  
when the nominal impedance  
of the subwoofer is 4 ohms  
or greater.  
GND  
REM  
BATT  
BRIDGED  
STEREO  
NEON  
NEON  
R
L
POWER  
FUSES  
SPEAKER OUTPUTS  
Px600.2  
Px600.2  
(rear panel)  
Set MODE to LP;  
INPUT MODE to MO  
(on input panel)  
X-OVER  
FREQ  
32Hz 320Hz  
FLAT HP LP  
MODE  
MO  
ST  
12dB 24dB  
SLOPE  
INPUT  
MODE  
Subwoofer (4 ohms or greater)  
See “Setting the Crossover(s)”  
on page 6 to set FREQ and SLOPE  
For Stereo or Mono signals, use  
both L/R inputs  
4
APPLICATIONS – Px300.4  
Figure 6. The JBL Px300.4  
amplifier is set to stereo mode  
to drive front and rear pairs of  
full-range speakers.  
The JBL Px300.4 amplifier can be set  
up for stereo or tri-mode operation, as  
shown in Figures 6 and 7.  
FRONT  
REAR  
GND  
REM  
BATT  
BRIDGED  
STEREO  
NEON  
NEON  
R
L
R
L
NOTE: For simplicity, Figures 6 and 7 do  
not show power, remote and input  
connections.  
POWER  
FUSES  
SPEAKER OUTPUTS  
SPEAKER OUTPUTS  
Px300.4  
NOTE: To limit bass sent to  
full-range speakers, set  
X-OVER MODE to HP. See  
page 6 to set FREQ and SLOPE.  
Px300.4  
RF Speaker  
LR Speaker  
(rear panel)  
+
+
-
-
Set REAR and FRONT  
Set REAR and FRONT  
INPUT MODE to ST  
X-OVER MODE to FLAT  
(on input panel)  
(on input panel)  
LF Speaker  
RR Speaker  
+
+
ST  
INPUT  
MODE  
MO  
FLAT HP LP  
MODE  
-
-
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.  
FRONT  
REAR  
GND  
REM  
BATT  
BRIDGED  
STEREO  
NEON  
NEON  
R
L
R
L
POWER  
FUSES  
SPEAKER OUTPUTS  
SPEAKER OUTPUTS  
Px300.4  
NOTE: To drive a pair of rear  
midbass speakers (instead of  
subwoofer), set INPUT MODE  
to ST, X-OVER MODE to LP,  
and use DBO to set HP filter.  
RF  
Px300.4  
System  
(rear panel)  
Subwoofer  
+
-
Set FRONT  
Set REAR  
+
INPUT MODE to ST  
INPUT MODE to MO  
(on input panel)  
(on input panel)  
LF  
-
System  
ST  
INPUT  
MODE  
MO  
ST  
INPUT  
MODE  
MO  
+
-
Set FRONT  
Set REAR  
X-OVER MODE to HP  
X-OVER MODE to LP  
(on input panel)  
(on input panel)  
FLAT HP LP  
MODE  
FLAT HP LP  
MODE  
See “Setting the Crossover(s)”  
on page 6 to set FREQ and SLOPE  
5
INSTALLATION AND SETUP  
SETTING THE  
OUTPUT MODE  
Using the 2-Channel Mode  
SETTING INPUT  
SENSITIVITY  
SETTING DBO  
(ALL MODELS  
EXCEPT Px600.2)  
With any Power Series amplifier, you  
can also drive two woofers separately  
by connecting the speakers in the  
2-channel mode (see Figure 1 on page  
3). In this mode, the minimum nominal  
impedance is 2 ohms. On BPx models,  
set the OUTPUT MODE switch to  
2CH/BR.  
Setting an output mode depends on  
your choice of system configuration  
and the nominal impedace of your  
speaker system. JBL Power Series BPx  
amplifiers provide rated power into  
any impedance between 1 and 4 ohms.  
The BPx500.1, BPx1100.1 and BPx2200.1  
amplifiers can be configured to provide  
high voltage to loads of 2 ohms or  
greater, or high current for loads below  
2 ohms.  
NOTE: For BPx models, you can use  
the supplied REMOTE LEVEL CONTROL  
instead of the amplifier’s INPUT LEVEL  
control to set input sensitivity. Connect  
the remote module’s attached cable to  
the REMOTE LEVEL CONTROL (RJ-11)  
jack on the amplifier’s input panel.  
1. Initially, turn the INPUT LEVEL  
control(s) to the minimum  
(counterclockwise) position(s).  
2. Reconnect the (–) negative lead to  
your vehicle’s battery. Apply power  
to the audio system and play a  
dynamic music track from CD  
or tape.  
Dynamic Bass Optimizer (DBO) is  
a new approach to enhancing low-  
frequency reproduction in a vehicle.  
Conventional bass boost controls add  
bass at a fixed frequency and cause  
the amplifier to consume considerable  
power. DBO conserves valuable power  
at the lowest frequencies and allows  
you to adjust the level and “character”  
of the bass sound, instead of just the  
amount of boom.  
SETTING THE  
CROSSOVER(S)  
IMPORTANT: If you plan to use the  
Px300.4 or Px600.2 to drive full-range  
speakers, set the X-OVER MODE  
switch(es) to FLAT and skip to the next  
section, “Setting Input Sensitivity.”  
1. Initially set the X-OVER FREQ  
control(s) midway. Later, when  
listening to music (in the next  
section), adjust them for least-  
perceived distortion from midrange  
and high-frequency speakers, while  
allowing them to reproduce as much  
bass as possible.  
2. Depending on your system plan, set  
the X-OVER MODE switch(es) to LP  
(low-pass), HP (high-pass), or FLAT.  
3. For HP filters, set the X-OVER SLOPE  
switch(es) to 24dB to limit bass and  
provide increased system volume  
with less distortion.  
Using the Bridge Mode  
If your speaker system has a nominal  
impedance of 2 ohms or greater, bridge  
the amplifier’s two channels to drive  
the speaker(s). On BPx models, set the  
OUTPUT MODE switch to 2CH/BR (see  
Figure 2 on page 3).  
Since a subwoofer in a vented box is  
given to overexcursion below the  
tuned frequency, set the HP FREQ  
control 10Hz below the box’s resonant  
(tuned) frequency (e.g., 30Hz for a  
vented box tuned to 40Hz). Power  
typically wasted in this region will  
now be conserved and be available  
for frequencies the enclosure will  
reproduce. Use the BOOST  
NOTE: After the source unit is on,  
blue LEDs (on the top panel) will  
illuminate, indicating the amplifier  
is on. If not, check the wiring,  
especially the remote connection  
from the source unit. Also refer to  
“Troubleshooting” on the next page.  
Using the Parallel Mode  
(BPx Models Only)  
If the nominal speaker-system  
impedance is less than 2 ohms,  
connect the two amplifier channels  
in parallel to drive the speaker(s),  
as shown in Figure 3 on page 3.  
On BPx models, set the OUTPUT MODE  
switch to PARALLEL.  
INSTALLATION AND SETUP control to  
boost the bass at the set frequency by  
as much as 12dB, as shown in Figure 8.  
3. On the source unit, increase the  
volume control to maximum position.  
Slowly increase the INPUT LEVEL  
control(s) (clockwise) towards three  
o’ clock and observe the I-E/OPT LED  
(on the amplifier top). At the ideal  
setting, it should flash on musical  
peaks, signifying maximum voltage is  
being delivered in the 2-channel or  
bridge modes, or maximum current is  
being delivered in the parallel mode.  
If the I-E/OPT LED is on steadily, the  
amplifier is being overdriven. Turn  
the INPUT LEVEL control(s) back  
slightly until the I-E/OPT LED flashes  
on musical peaks.  
HP FREQ  
DBO HP FREQ Control  
(adjusts cut-off  
frequency)  
20Hz 100Hz  
dB  
0
NOTE: If the nominal impedance of  
your subwoofer system is close to  
2 ohms, try both series and parallel to  
determine which mode provides the  
highest volume. Use the I/E OPT LED  
according to “Setting Input Sensitivity”  
on the right.  
For LP filters, use 12dB or 24dB  
-3  
according to taste. However, using  
a 24dB slope will make bass less  
directional since midrange frequencies  
are being filtered from the woofer’s  
response. When choosing a low-pass  
filter frequency for your subwoofers,  
choose the highest frequency that will  
remove vocal information from the  
sound of the subwoofer.  
-6  
-9  
-12  
20  
80  
Freq. (Hz)  
BOOST  
DBO BOOST Control  
(adjusts boost amount  
at cut-off frequency)  
dB  
MIN  
MAX  
12  
6
0
-6  
-12  
20  
80  
Freq. (Hz)  
Figure 8. Frequency response curves  
show typical DBO control ranges for  
selected JBL Power Series amplifiers.  
6
INSTALLATION AND SETUP  
TROUBLESHOOTING  
For sealed enclosures, use DBO to  
enhance the middle of the bass region.  
Set the HP FREQ control to 35Hz to  
40Hz and adjust the BOOST control to  
taste. This will make the bass sound  
bigger and fuller. Alternatively, for  
tighter-sounding bass, set the HP FREQ  
control between 45Hz and 50Hz,  
4. Locate the enclosed hardware bag  
SYMPTOM  
LIKELY CAUSE  
SOLUTION  
and remove the four clips. Each clip  
has a square end and a larger round  
end. Using a round end, press two  
clips onto each neon tube (e.g.,  
Street Glow AN9 or equivalent), as  
shown in Figure 9 below.  
5. For each tube, align both clips so the  
square ends slide onto an exposed  
extrusion edge, as shown in Figure 9.  
Do not cover any screw holes. When  
installed correctly, each neon tube  
will sit under an extrusion and not be  
visible when viewed from directly  
above.  
6. Route each neon tube’s power cable  
through its respective NEON hole on  
the end panel (see Figure 9).  
7. Slide the cover back into place and  
reinstall its screws. Then, replace  
the end panel and reinstall its  
screws.  
8. Finish the installation of the neon  
tubes as instructed in their owner’s  
manual.  
No audio  
(POWER LED  
is off)  
No voltage at BATT+  
or REM terminals,  
or bad or no ground  
connection  
DC voltage on  
amplifier output  
Check voltages at  
amplifier terminals  
with VOM  
No audio  
Amplifier may need  
service; see enclosed  
warranty card for  
(PROTECT LED  
flashes every  
4 sec.)  
No audio  
(PROTECT  
LED is on)  
and also adjust the BOOST control  
according to your preference.  
service information  
Amplifier is  
overheated  
Make sure amplifier  
cooling is not blocked  
at mounting location;  
verify speaker-system  
impedance is within  
specified limits (see  
“Specifications” on the  
next page)  
Check vehicle  
charging system for  
defective voltage  
regulator  
Check INPUT  
LEVEL setting;  
see previous page  
Check vehicle  
charging system for  
defective voltage  
For infinite-baffle applications, set the  
HP FREQ control to the speaker’s FS  
value (to keep the subwoofer from  
trying to create bass below the  
resonant frequency) and adjust the  
BOOST control to taste.  
No audio  
Voltage less than 9V on  
BATT+ connection  
INSTALLING NEON  
TUBES (OPTIONAL)  
1. Using a Phillips screwdriver, remove  
all screws on the amplifier’s  
output/power end panel and set  
them aside.  
2. Using a 332-inch Allen wrench,  
remove only the screws on the  
amplifier’s (top) clear cover and set  
them aside.  
(PROTECT  
and POWER  
LEDs flash)  
I-E/OPT LED  
is on all times  
(not flashing)  
No audio  
(PROTECT  
LED is on)  
Amplifier is being  
overdriven  
Voltage more than 16V  
or less than 8.5V on  
BATT+ connection  
regulator  
Input sensitivity is  
not set properly, or  
amplifier or source  
unit is defective  
3. Remove the end panel and slide the  
cover off. Set both parts aside.  
Distorted audio  
Check INPUT  
LEVEL setting; or  
check speaker wires  
for shorts or grounds  
Remove speaker leads  
one at a time to locate  
shorted speaker or  
wire, then repair  
Lip  
Neon  
Tube  
Distorted audio  
and PROTECT  
LED flashes  
Short circuit in  
speaker or wire  
Neon Tube  
and Clip  
To Neon  
Power  
Supply  
Clip  
Installing A Clip  
On Extrusion Lip  
(side view)  
Clip  
Clip  
Music lacks  
“punch”  
Speakers are not  
connected properly  
Check speaker  
connections for  
proper polarity  
Installed Neon Tube  
Under Extrusion Lip  
To Neon  
Power  
Supply  
PROTECT  
POWER  
I-E OPT  
Px600.2 Amplifier  
(top view with clear cover off)  
Output/Power  
End Panel  
Figure 9.  
Installing neon tubes in a JBL Px600.2 amplifier.  
Installation is similar for other models.  
7
SPECIFICATIONS  
Px300.4  
Px600.2  
BPx500.1  
BPx1100.1  
BPx2200.1  
Power Output,  
4 Ohms  
75W x 4  
150W x 2  
N/A  
N/A  
N/A  
Power Output,  
2 Ohms  
150W x 4  
300W x 2  
N/A  
300W x 2  
600W x 1  
N/A  
250W x 2  
575W x 2  
1100W x 2  
2200W x 1  
2200W x 1  
1 ohm  
Power Output,  
Bridged, 4 Ohms  
500W x 1  
1100W x 1  
1100W x 1  
1 ohm  
Power Output,  
Parallel, 1 Ohm  
500W x 1  
Min. Speaker  
Impedance  
2 ohms  
2 ohms  
1 ohm  
Frequency  
Response  
11Hz ~ 45kHz, +1dB  
10Hz ~ 45kHz, +1dB  
250mV ~ 6V  
0.04%  
20Hz ~ 320Hz , 3dB  
250mV ~ 6V  
0.5%  
20Hz ~ 320Hz , 3dB  
250mV ~ 6V  
0.5 %  
20Hz ~ 320Hz , 3dB  
250mV ~ 6V  
0.5 %  
Input Sensitivity 250mV ~ 6V  
(RCA type)  
THD + Noise  
(4 Ohms)  
0.04%  
Signal-to-Noise  
95dB  
78A  
95dB  
78A  
93dB  
50A  
93dB  
110A  
93dB  
190A  
Maximum  
Current Draw  
Fuse  
30A x 2  
30A x 2  
30A x 2  
30A x 3  
150A x 1 external fuse  
Replacement  
Dimensions  
(H x W x L)  
12-1 ⁄4" x 17" x 2-916"  
312mm x 432mm x 66mm  
12-1 ⁄4" x 17" x 2-916"  
312mm x 432mm x 66mm  
12-1 ⁄4" x 13" x 2-916"  
312mm x 330mm x 66mm  
12-1 ⁄4" x 17" x 2-916"  
312mm x 432mm x 66mm  
12-1 ⁄4" x 21-58" x 2-916"  
312mm x 555mm x 66mm  
Declaration of Conformity  
* BPx500.1, BPx1100.1 and BPx2200.1 amplifiers are  
performance-engineered by Crown.  
We, Harman Consumer International  
2, route de Tours  
72500 Chateau-du-Loir  
FRANCE  
JBL Consumer Products  
declare in own responsibility, that the product  
described in this owner’s manual is in compliance  
with technical standards:  
250 Crossways Park Drive, Woodbury, NY 11797 USA  
© 2003 Harman International Industries, Incorporated  
EN 55013/A14:1999  
EN 55020/A14:1999  
JBL and Power Series are registered trademarks,  
and Dynamic Bass Optimizer is a trademark, of  
Harman International Industries, Incorporated.  
Emmanuel Millot  
Harman Consumer  
International  
Part No. PSAMPOM5/03  
Chateau-du-Loir, France 5/03  

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