Read JBL P622 User Guide / Operation Manual online
loudspeakers. We’ve organized this
manual to make your installation as
simple and trouble-free as possible.
Please read through it completely before
proceeding. If, after having read it, you
decide that you would rather leave
installation to a professional, consult your
JBL Power Series Dealer.
speakers are built to meet the same
rigorous standards of construction and
performance that have long established
JBL’s renowned home and professional
These speakers incorporate advanced
materials and construction especially
suited to the unique acoustic environment
of modern vehicles. They are
engineered to provide excellent
dispersion, wide frequency response,
and high power handling.
to break off or use tin snips.
speakers with grilles as shown in Figure 2.
Notch on Trim Ring
(pat. pend.) mounting system as shown in Figures 3a, 3b, 3c.
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
possible 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 tweeter’s axis. If
possible, 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.
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
frequency 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 fidelity and
widest dynamic range. A crossover
frequency of between 80Hz and 120Hz is
recommended for the best imaging and
widest dynamic range.
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 fit 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
elsewhere, check for clearance around
rear deck torsion bars, glove box or other
• Do not mount speakers where they will
• Make sure that it will be easy to run
connecting wires to the speakers. Trace
speaker wire paths before you undertake
• Always disconnect the ground wire from
the battery before doing any work on the
for adequate speaker basket clearance
before considering this location!
loudspeakers will produce reasonable
volume levels in the automotive
environment using very little amplifier
power. However, the use of a small
amplifier to attain very high volume levels
could lead to overdriving the amplifier.
This will generate high distortion levels
which can easily damage loudspeakers,
even if the rated power of the amplifier 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
amplifier or mechanical noise from an
For the best performance and speaker
reliability, you should select an amplifier
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 amplifier will not attempt to deliver
more power than its design allows.
hearing. The maximum volume levels
achievable with JBL speakers combined
with high power amplification may
exceed safe levels for extended listening.
When listening at high volume levels,
always use hearing protection or turn the