8IB4 10IB4 12IB4
Subwoofers
o w n e r ’ s m a n u a l
Congratulations on your purchase of a JL Audio subwoofer component. Your JL Audio subwoofer is a
precision loudspeaker which has been engineered to produce the highest quality sub-bass performance in
your vehicle. Authorized JL Audio dealers have extensive technical information about your new speaker.
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RECOMMENDED CONTINUOUS (RMS) POWER RANGE FOR ONE SUBWOOFER DRIVER:
2 5 W
5 0 W
1 0 0 W
2 0 0 W
4 0 0 W
8IB4
10IB4
12IB4
L E G E N D :
M I N I M U M
O P T I M U M
M A X I M U M
WA R R A N T Y VO I D
MEDIUM GRAY (MINIMUM):
From reliability standpoint, this zone
represents very comfortable operating
power range for each driver. This level of
power will not stress the woofer but will not
extract all of its performance potential, either.
Use of less than the minimum power level
will not damage the woofer, but may result
in unsatisfactory performance.
LIGHT GRAY (OPTIMUM):
DARK GRAY (MAXIMUM):
BLACK (WARRANTYVOID):
We do not recommend operating
woofers at this level of power. In this zone,
a
Thiszonerepresentsthebestcompromise
between long-term reliability, high-output
and low-distortion performance and is
centered on each woofer's continuous
power rating (as published in its
specifications). In this zone, you will be
taking full advantage of the woofer's
optimum, low-distortion performance
range without undue risk of failure.
In this zone, low-distortion output and
long-term reliability will be compromised
(especially by an aggressive user). Slightly
more SPL will be gained by pushing the
power into this zone, but typically not more
than 2dB, compared to the light gray zone.
The closer you are to the black zone, the
higher the likelihood of driver failure.
Operate with caution.
a
there is
a
very high probability that the
driver will fail due to excessive heat and/or
mechanical stress.
Subwoofer drivers operated at these
levels of power are NOT covered under
warranty.
JL Audio offers an extensive line of high-performance subwoofer drivers to fit a wide variety of enclosure and power applications.When designing systems with our
drivers, it is very important to achieve a good power match between the subwoofer amplifier and the subwoofer driver's capabilities. The power levels listed in the
above chart represent continuous (RMS) amplifier power per woofer and assume that the user will regularly make full use of that power without drastically
overdriving the amplifier(s). Make sure you factor system impedance and the total number of subwoofers into your calculations. Adhering to these power
recommendations will result in systems that are both reliable and enjoyable.
JL AUDIO IB4
3
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For Service Information in the U.S.A. please call:
JL Audio customer service: (954) 443-1100 during normal business hours (EasternTime)
JL Audio, Inc
10369 North Commerce Parkway, Miramar, FL 33025
InternationalWarranties:
Products purchased outside the United States of America are covered only by that country’s distributor and not by JL Audio, Inc.
Printed in USA
JLIB4-11-2003
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