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JBL Loud+Clear LC-S1000w User manual

Loud + Clear subwoofers are optimized to perform best in
small sealed, vented and prefabricated bandpass enclosures.
While infinite-baffle mounting of Loud + Clear subs is
possible, power handling will be greatly compromised
because there will be no enclosed volume of air to prevent
the speaker s cone from moving past its limit. For this
reason, we do not recommend infinite-baffle mounting for
Loud + Clear subwoofers.
You should choose an enclosure based on the type of music
you listen to, how much amplifier 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
woofer movement, a woofer mounted in a sealed enclosure
will handle more power than a woofer mounted in another
enclosure type. Sealed enclosures also provide more
accurate sonic reproduction than other enclosure types 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 it requires
the least amount of space inside the vehicle.
Vented enclosures provide better efficiency in the 40Hz–50Hz
range, but this efficiency comes at the expense of sound in
the lowest octave (below 40Hz) and at the expense of some
control and power handling. If you are using a small
amplifier, a vented box will provide more 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
specific relationship to the characteristics of the woofer, they
must be built exactly to the specifications provided. While
there are some prefabricated vented boxes available,
matching a prefabricated box to a particular woofer is
difficult. If you wish to use a vented
enclosure, we strongly recommend having
your authorized JBL dealer build it or at least 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.
Bandpass enclosures often provide the greatest output
available from any amplifier/subwoofer combination, albeit
at the expense of sonic accuracy. If sheer SPL (sound
pressure level) is what you desire most, choose a bandpass
enclosure. Because bandpass-enclosure design is tricky,
using a computer and enclosure-design software is
necessary. If you are an experienced installer or have some
woodworking skill, you may wish to build the enclosure
described in the “Specifications” chart in this manual.
Fortunately, however, there are many prefabricated
bandpass boxes available and they are all optimized to
extract the greatest possible output from any woofer. Be
aware that bandpass enclosures can be quite large and may
require a lot of space inside your vehicle.
Choosing an Enclosure
Thank you for purchasing a JBL Loud + Clear subwoofer.
Subwoofer installation often requires woodworking skills
and so e experience disasse bling and reasse bling
auto otive interiors. If you lack the necessary tools or
know-how, have your subwoofer installed by an authorized
JBL dealer.
Warning! Playing loud usic in an
auto obile can per anently
da age your hearing as well as
hinder your ability to hear traffic. We
reco end listening at low levels
while driving. JBL accepts no
liability for hearing loss, bodily
injury or property da age
resulting fro use or
isuse of this product.
Subwoofer
Subwoofer
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
1-800-336-4JBL (4525) (USA only)
www.jbl.com
©1999 JBL, Incorporated
JBL is a registered trademark of JBL, Incorporated.
Part No. LCWOOFOM 2/99
RECYCLABLE
LC-S1200w
12–200W
91dB
40Hz–500Hz
5" (127mm)
10-3/4" (273mm)
4 Ohms
3.45 Ohms
27.4Hz
124 Liters
3.18
0.37
0.33
109.2g
2.2mH
1.25 cu. ft. (35.88 Liters)
1.75 cu. ft. (49.54 Liters)
4" (101.6mm)
10-3/4" (273mm)
1.25 cu. ft. (35.88 Liters)
1 cu. ft. (28.31 Liters)
4" (101.6mm)
6" (152.4mm)
LC-S800w
Specifications
Reco ended A plifier Power Range 12–100W
Sensitivity 89dB
Frequency Response 47Hz–2kHz
Mounting Depth 4-1/8" (105mm)
Cut-out Dia eter 7" (178mm)
Thiele and S all Para eters
No inal I pedance 4 Ohms
Revc 3.47 Ohms
Fs 33.27Hz
Vas 32.67 Liters
Q s 4.67
Qes 0.38
Qts 0.33
M s 48.6g
Levc 2.1mH
Sealed-Enclosure Specifications
Enclosure Volu e .4 cu. ft. (11.32 Liters)
Vented-Enclosure Specifications
Enclosure Volu e .6 cu. ft. (19.96 Liters)
Port Dia eter 3" (76.2mm)
Port Length 10" (254mm)
Bandpass-Enclosure Specifications
Sealed-Cha ber Volu e .4 cu. ft. (11.32 Liters)
Vented-Cha ber Volu e .4 cu. ft. (11.32 Liters)
Port Dia eter 3" (76.2mm)
Port Length 7" (177.8mm)
LC-S1000w
12–150W
90dB
40Hz–800Hz
4-1/2" (114mm)
9" (229mm)
4 Ohms
3.52 Ohms
28.5Hz
71 Liters
4.39
0.34
0.32
75.0g
2.0mH
1 cu. ft. (28.31 Liters)
1.5 cu. ft. (42.46 Liters)
3" (76.2mm)
7" (177.8mm)
1 cu. ft. (28.31 Liters)
.7 cu. ft. (19.82 Liters)
4" (101.6mm)
8" (203.2mm)

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