English
CS SERIES
CS1014
CS1214
car audio subwoofer
owner’s manual
THE OFFICIAL BRAND
OF LIVE MUSIC.
®
CHOOSING AN ENCLOSURE
THANK YOU for purchasing
a JBL® CS Series subwoofer.
Subwoofer installation requires
woodworking skills and some
experience in disassembling and
reassembling automotive interiors.
If you lack the tools or necessary
skills, have your subwoofer installed
by an authorized JBL dealer.
WARNING: Playing loud music
in an automobile can permanently
damage your hearing as well as
hinder your ability to hear traffi c.
Listening at low levels while driving
is recommended. JBL, Inc., accepts
no liability for hearing loss, bodily
injury or property damage resulting
from use or misuse of this product.
CS Series subwoofers are optimized
to perform best in small, sealed,
vented and prefabricated bandpass enclosures. While infi nitebaffl e mounting of CS Series subs
is possible, power handling will
be greatly compromised because
there’s no enclosed volume of
air to prevent the speaker’s cone
from moving past its limit. For this
reason, infi nite-baffl e mounting is
not recommended for CS Series
subwoofers.
You should choose the enclosure
you will use based on the type
of music you listen to, how much
amplifi er power you will use for the
subwoofer and how much space
inside the vehicle you can devote
to a subwoofer enclosure.
Because a sealed enclosure
provides the most control over
the woofer’s movement, a woofer
mounted in a sealed enclosure will
handle more power than a woofer
mounted in another enclosure type.
Sealed enclosures provide moreaccurate sonic reproduction than
other enclosure types when
mounted inside a vehicle, so they
are well suited to all types of music.
Sealed-enclosure construction is
straightforward, and there are many
prefabricated sealed enclosures
available. An optimum sealed
enclosure is always smaller than
other types of enclosures optimized
for a particular speaker, so they
require the smallest amount of
space inside the vehicle.
Vented enclosures provide better
effi ciency in the 40Hz – 50Hz range,
but this effi ciency comes at the
expense of sound in the lowest
octave (below 40Hz) and at the
expense of some control and power
handling at the lowest frequencies.
If you are using a small amplifi er,
a vented box will provide more
perceived bass output from less
power. Vented enclosures are also
well suited to a variety of music
types. Because vented enclosures
require the volume of the enclosure
and the size of the port to have
a specifi c relationship with the
characteristics of the woofer, the
enclosure must be built exactly to
the specifi cations provided. While
there are some prefabricated
vented boxes available, matching
a prefabricated box to a particular
woofer is diffi cult. If you wish to
use a vented enclosure, it is strongly
recommended that you have your
authorized JBL dealer build it or
verify that your design is correct
if you wish to build it yourself. An
optimum vented enclosure is always
larger than the optimum sealed box
for the same woofer and will require
more space inside the vehicle.
Band-pass enclosures often
provide the most output available
from any amplifi er and subwoofer
combination, at the expense of sonic
accuracy.
If sheer SPL (sound-pressure level)
is what you desire most, choose a
band-pass enclosure. Band-pass
enclosure design is very tricky, and
the aid of a computer and enclosure
design software is necessary. If you
are an experienced installer or have
some woodworking experience,
you may wish to build the bandpass enclosure described in the
enclosure design sheet included
with this woofer. Fortunately, there
are many prefabricated band-pass
boxes
available, and they are all optimized
to extract the most output possible
from any woofer. Band-pass
enclosures can be quite large and
may require a lot of space inside
your vehicle.
2
CONNECTING YOUR SUBWOOFER TO YOUR AMPLIFIER
Red
Positive
Black
Negative
Red
Positive
Black
Negative
To Amp
Positive
To Amp
Negative
Red
Positive
Black
Negative
Red
Positive
Black
Negative
To Amp
Positive
To Amp
Negative
Your CS Series subwoofer has a
single 4-ohm voice coil. Be sure to
consider your amplifi er’s optimum
load when designing a subwoofer
system. Many bridgeable 2-channel
amplifi ers are optimized to drive
a single 4-ohm woofer in bridged
mode. If you will use multiple
woofers, be sure to confi gure them
to extract all the power available
from your amplifi er. When designing
a subwoofer system, consider the
following rules:
1. Do not mix different subwoofers
or enclosure types in the same
system. Subwoofers being used in
the same enclosure or powered
by the same amplifi er should
be identical models. Mismatched
woofers and enclosures
can result in poor system
performance.
2. Most amplifi ers deliver exactly
the same amount of power
bridged into a 4-ohm load
as they do driving a 2-ohm
stereo load.
3. If you are designing a multiplewoofer system, be sure to
confi gure the woofers so that they
each receive the same amount of
power from the amplifi er. Never
connect two identical woofers in
series and then connect that pair
to another woofer in parallel. If
your system will include an odd
number of woofers, be sure to
connect all the woofers in either
series or parallel, according to
the rules that follow, in order to
maximize the power available
from your amplifi er:
a. The total system impedance
of voice coils (or woofers) in
series can be calculated using the
formula:
Impedance = w1 + w2 + w3 ...
b. The total system impedance
of woofers in parallel can be
calculated using the formula:
Impedance =
1
w
where w is the nominal
impedance of the woofer.
The diagrams at right show series
and parallel speaker connections.
1
1 + 1
+
1 w2 w3
Figure 1. Connecting two woofers
in series to the amplifi er (8 ohms)
Figure 2. Connecting two woofers in
parallel to the amplifi er (2 ohms)
...
English
3
SPECIFICATIONS
CS1014 CS1214
10” (250mm) Subwoofer 12” (300mm) Subwoofer
Power Handling, RMS 125W 250W
Power Handling, Peak 500W 1000W
Sensitivity (2.83V/1m) 90dB 90dB
Frequency Response 45Hz – 200Hz 35Hz – 200Hz
Impedance 4 Ohms 4 Ohms
Mounting Depth 4-9/16” (115mm) 6-1/16” (153mm)
Cutout Diameter 9” (228mm) 11” (279mm)
Overall Diameter 10-1/16” (255mm) 12-1/4” (311mm)
GENERAL CARE
The loudspeaker grille may be cleaned with a damp cloth. Do not use any cleaners or solvents on the grille or the speaker cone.
A valid serial number is required for warranty coverage.
Features, specifi cations and appearance are subject to change without notice.
This product is designed for mobile applications and is not intended for connection to the mains.
Declaration of Conformity
Designed and engineered in the USA.
Harman Consumer Group, Inc.
250 Crossways Park Drive, Woodbury, NY 11797 USA
www.jbl.com
© 2008 Harman International Industries, Incorporated. All rights reserved.
JBL is a trademark of Harman International Industries, Incorporated,
registered in the United States and/or other countries.
Part No. CS10/1214OM 12/08
We, Harman Consumer Group, Inc.
2, route de Tours
72500 Château du Loir
France
declare in own responsibility that the products described in this owner’s
manual are in compliance with technical standards:
EN 61000-6-3:2001
EN 61000-6-1:2001
Klaus Lebherz
Harman Consumer Group, Inc.
Château du Loir, France 12/08
www.jbl.com
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