JBL Speaker MPS1000 User Manual

MPS1000  
MARINE POWERED  
SUBWOOFER  
OWNER’S MANUAL  
www.jbl.com  
The Official Brand of Live Music.  
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CONTROLS AND FUNCTIONS  
The MPS1000 has several controls and indicators that simplify sonic  
integration with the rest of the speakers on your boat. To gain access  
to the controls, you must remove the cover and the water-tight  
rubber plug underneath. To remove the cover, remove the two small  
Phillips-head screws and pull the cover away, according to the arrow  
in Figure 4. To reinstall the cover, follow the arrows in Figure 6 and  
replace the two screws.  
Figure 7. MPS1000 controls on the front panel  
TUNING THE MPS1000  
1. Make sure the head unit is off and its volume control is set to  
minimum.  
2. On the MPS1000’s front panel, set the Gain control to the midpoint  
position.  
3. Set the Crossover control to its maximum position (clockwise).  
4. Set the Bass Boost control to the minimum position  
(counterclockwise).  
Phase  
Figure 4. Removing cover  
MPS1000  
5. Set Phase to 0.°  
0°  
180°  
6. Turn on the head unit and play a favorite music track that has  
substantial bass. Set the head unit’s volume control to 75% of the  
total output (approximately 3 o’clock on rotary controls).  
7. Listen to your system, making a mental note of the amount of upper  
bass being reproduced.  
8. Switch the Phase control to 180° and listen again for upper bass  
content. There may be more upper bass, less upper bass, or no  
change at all. The position that provides the most upper bass is  
correct.  
80  
120  
max 50  
min  
max  
min  
Gain  
Crossover  
Boost  
1
2
1
9. Adjust the Crossover control clockwise or counterclockwise  
until you hear only low-frequency information in the output of the  
MPS1000. For example, you should NOT hear any vocals coming  
from the MPS1000 when seated in the normal listening position.  
10. Adjust the Bass Boost control clockwise to suit your preference.  
Figure 5. Rubber plug  
Power LED: This indicator will glow blue when the MPS1000 is  
operational.  
Phase  
MPS1000  
0
80°  
Gain Control: Use this control to adjust the volume (loudness) of  
the MPS1000, compared to the loudness of the other speakers in  
your boat.  
NOTE: In most cases, the steps above will provide satisfactory tuning.  
However, the actual process may require several readjustments of  
each control, since the settings will interact with each other. If  
necessary, consult your authorized JBL car or marine audio dealer  
for help in tuning your system.  
120  
min  
max 50  
min  
max  
Crossover: Use this control to adjust the amount of high-frequency  
information in the MPS1000’s output. A lower value means less  
high-frequency signal will be present in the MPS1000’s output.  
Gain  
Crossover  
Boost  
NOTE: Depending on the MPS1000’s orientation and location in your  
boat, reversing the phase may (or may not) increase or decrease the  
amount of upper bass being reproduced.  
Bass Boost: Use this control to correct any perceived peak or dip  
in the bass response. This control provides boost or cut at 50Hz.  
Set the control to any value between 0dB and +7dB, according to  
your preference.  
NOTE: Be sure to replace the rubber plug after making adjustments.  
Figure 6. Reinstalling cover  
Phase Control: Use this switch to reverse the phase of the MPS1000’s  
output, with respect to its input. Choose the position (0° or 180°) that  
sounds best. See “Tuning the MPS1000.”  
3
1
3
2
3
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TROUBLESHOOTING  
SPECIFICATIONS  
MPS1000  
13"  
SYMPTOM  
LIKELY CAUSE  
SOLUTION  
331mm  
10" (250mm) Marine Powered Subwoofer  
• Amplifier Power: 250W RMS  
• Frequency Response: 40Hz – 100Hz  
• Signal-to-Noise Ratio: 81.1dB  
• Fuse: 30A  
• Max. Current Draw: 14A  
• Idle Current Draw: <1.03A  
• Input Sensitivity:  
• Line-Level Input: 100mV to 6V  
• Speaker-Level Input: 1V to 13V  
• Crossover Frequency: 50Hz to 100Hz  
• Crossover Slope: 12dB per octave  
• Bass Boost: 0dB to +7dB @ 50Hz  
• Mounting Depth: 7-15/16" (202mm)  
• Cutout Diameter: 10-1/8" (258mm)  
• Overall Diameter: 13"/13-1/16" (331mm/332mm)  
• ISO-8846 Marine-compliant  
Power LED is not lit.  
Fuse is blown.  
Fuse should be replaced.  
Head unit is not  
functioning properly.  
Check remote voltage, and power,  
ground or remote connections. The  
MPS1000 is designed to shut off if  
the battery voltage falls below 10V.  
This is to ensure that your battery  
isn’t completely drained. Charge  
the boat’s battery.  
13-1/16"  
332mm  
Power LED is lit  
but there is no bass.  
Inputs are not connected. Check connections.  
Head-unit fader control  
is not set properly.  
Gain control is set too high. Readjust Gain control (see “Tuning  
the MPS1000” on the previous page).  
Adjust head-unit fader control to  
feed audio signals to the MPS1000.  
MPS1000 sounds  
muddy or distorted.  
1-1/2"  
39mm  
Bass Boost is set too high. Readjust Bass Boost control  
(see “Tuning the MPS1000” on the  
previous page).  
Head-unit output is  
7-15/16"  
202mm  
distorted or blown.  
A valid serial number is required for warranty coverage.  
Features, specifications and appearance are subject to change without notice.  
9-3/16"  
234mm  
10-1/8"  
258mm  
Declaration of Conformity  
Harman Consumer Group, Inc.  
250 Crossways Park Drive  
Woodbury, NY 11797 USA  
We, Harman Consumer Group, Inc.  
2, route de Tours  
72500 Château du Loir  
France  
declare in own responsibility that the product  
described in this manual is in compliance with  
technical standards:  
© 2007 Harman International Industries,  
Incorporated. All rights reserved.  
EN 55013:2001  
EN 55020:2002  
JBL is a trademark of Harman International  
Industries, Incorporated, registered in the  
United States and/or other countries.  
Klaus Lebherz  
Part No. MPS1000OM5/07  
Harman Consumer Group, Inc.  
Château du Loir, France 5/07  
www.jbl.com  
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