JBL P 923 User Manual

Automotive Loudspeakers  
P-422, P-522, P-622 & P-923 Owner’s Manual  
GENUINE JBL  
Figure 3d  
Figure 3a  
Hole Cutout  
Installation of the P-622 speakers with the Intermount II™  
(pat. pend.) mounting system as shown in Figures 3a, 3b, 3c.  
Mounting  
Ring  
Clips  
Mounting  
Hooks  
Rotate  
to  
Lock  
Mounting  
Surface  
Figure 3c  
Foam  
Gasket  
Hole  
Mounting  
Slots  
Front View  
Cutout  
Match Notch on  
Speaker with  
Notch on Trim Ring  
Front Mounting  
Mounting the P-622 in  
165/170mm DIN (European)  
installations using the  
Intermount II clips  
Rotate  
to Lock  
Slots for  
Mounting  
Hooks  
Figure 3b  
Foam Gasket  
Grille  
Screen  
Figure 3e  
Grille  
Trim Ring  
Mounting Ring  
Rotate  
to Lock  
Mounting  
Hooks  
Mounting for US 6-1/2"  
Honda/Toyota  
Factory Location  
Rear View  
Rear Mounting  
03  
Speaker Placement  
Because of the Power Series speakers’  
versatile mounting options, there are  
many placement options that will achieve  
excellent sound quality in your vehicle.  
Please consider the following to help you  
get the most from your speakers.  
1. The most spacious stereo image is  
achieved when the left and right speakers  
are placed as far apart as possible.  
2. The best center image will be achieved  
when the distance from the left speaker  
and the right speaker are as equal as pos-  
sible from your listening position. This is  
most easily achieved by placing the  
speakers as far forward as possible.  
3. Treble is directional in nature. This  
means that high frequencies are reduced  
as you move off the tweeters axis. If pos-  
sible, rotate the speakers so that the angle  
of the tweeter points across the car to the  
listener on the opposite side. This will  
make each listener slightly off-axis to the  
tweeter that is closest to that listener, but  
on axis to the most distant speaker, which  
helps compensate for the fact that each  
listener is always closer to one speaker  
than to the other (see Figures 4a and 4b).  
Choosing mounting locations that satisfy  
all of the above criteria will provide the  
most satisfying performance.  
A Note on Power Handling  
As a result of their high efciency, all JBL  
loudspeakers will produce reasonable  
volume levels in the automotive environ-  
ment using very little amplier power.  
However, the use of a small amplier to  
attain very high volume levels could lead  
to overdriving the amplier. This will  
generate high distortion levels which can  
easily damage loudspeakers, even if the  
rated power of the amplier is below the  
rated maximum power handling of the  
loudspeaker!  
As a general rule, do not turn up the  
volume control past the point where  
you hear distortion in the form of either  
signal distortion from an overdriven  
amplier or mechanical noise from an  
overstressed speaker.  
For the best performance and speaker  
reliability, you should select an amplier  
with an output rating slightly higher than  
the maximum power likely to be used to  
generate the desired volume levels. This  
margin of reserve power will ensure that  
the amplier will not attempt to deliver  
more power than its design allows.  
Aim Triangle of Tweeter Diffuser  
Toward Listener  
Installation Warnings  
and Tips  
Be careful not to cut or drill into fuel  
tanks, fuel lines, brake or hydraulic lines,  
vacuum lines or electrical wiring when  
working on your vehicle. Inspect behind  
panels before you cut or drill.  
Make sure that the speaker will  
physically t in the mounting location. If  
door mounting, check for adequate clear-  
ance with the window in both closed and  
open positions as well as for interference  
with the window crank and power  
window mechanism. If mounting else-  
where, check for clearance around rear  
deck torsion bars, glove box or other  
structural elements.  
Do not mount speakers where they will  
get wet.  
Make sure that it will be easy to run  
connecting wires to the speakers. Trace  
speaker wire paths before you undertake  
mounting.  
Figure 4b  
System Design  
A more advanced system design can be  
achieved by adding a Decade,GT,  
Power, GTi, or equivalent subwoofer to  
your Power Series speakers. In this case  
the Power Series multi-element speakers  
will be used as high and midbass fre-  
quency drivers and should have their  
extremely low frequencies blocked by  
electrical means. Active or passive  
crossovers can be used in order to  
achieve the best system delity and  
widest dynamic range. A crossover fre-  
quency of between 80Hz and 120Hz is  
recommended for the best imaging and  
widest dynamic range.  
WARNING: Playing loud music over  
120dB can permanently damage your  
hearing. The maximum volume levels  
achievable with JBL speakers combined  
with high power amplication may  
exceed safe levels for extended listening.  
When listening at high volume levels,  
always use hearing protection or turn the  
volume down!  
Always disconnect the ground wire from  
the battery before doing any work on the  
vehicle.  
CAUTION: Fuel tanks are located directly  
beneath the rear deck in some cars. Check  
for adequate speaker basket clearance  
before considering this location!  
Figure 4a  
04  
Specications  
Multi-Element Loudspeakers  
With Injection-Molded Titanium-Composite Woofer Cones and Butyl-Rubber Surrounds  
P-923  
P-622  
P-522  
P-422  
6" x 9" 3-Way  
6-1/2" 2-Way  
5-1/4" 2-Way  
4" 2-Way  
Super Tweeter  
Tweeter  
3/4" Solid-state  
Titanium  
Composite  
Titanium-  
Titanium-  
Titanium-  
Titanium-  
Composite  
Composite  
Composite  
Composite  
Balanced Dome  
Balanced Dome  
Balanced Dome  
Balanced Dome  
Tweeter Size  
1-1/4"  
3/4"  
3/4"  
3/4"  
Speaker Impedance  
4 Ohms  
4 Ohms  
4 Ohms  
4 Ohms  
Recommended Amplier  
Power Range  
5 250W RMS  
25Hz 22kHz  
92dB  
5 175W RMS  
45Hz 22kHz  
91dB  
5 150W RMS  
55Hz 22kHz  
90dB  
5 120W RMS  
65Hz 22kHz  
90dB  
Frequency Response  
Sensitivity  
Mounting Depth  
Drop-in  
3-1/16" (78mm)  
2-3/16" (56mm)  
2-3/8" (61mm)  
1-7/8" (48mm)  
Service  
Should your loudspeaker ever need ser-  
vice, return it to the JBL dealer from  
whom it was purchased. If for some rea-  
son this is impractical, call 800-336-4JBL  
for your nearest warranty station. Do not  
return products to the JBL factory with-  
out prior authorization.  
General Care  
The loudspeaker grilles may be cleaned  
with a slightly damp cloth.  
Safety Note  
To avoid the dangers of accidental suffo-  
cation, please properly dispose of the  
plastic bag used in the speaker packaging.  
Do not use any cleaners or solvents on  
the grilles or the speaker drivers.  
05  
Declaration of Conformity  
We, JBL Europe A/S  
Kongevejen 194B  
DK-3460 Birkerød  
DENMARK  
declare in own responsibility, that the products  
described in this owner’s manual are in compliance  
with technical standards:  
EN 50 081-1/1992  
EN 50 082-1/3.1995  
Steen Michaelsen  
JBL Europe A/S  
Birkerød. DENMARK. 1/98  
JBL Consumer Products  
250 Crossways Park Drive  
Woodbury, NY 11797  
800-336-4JBL (4525) www.jbl.com  
A Harman International Company  
Part No. POWSPKRSOM  
Made in USA  

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