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JBL SERIES
LOUDSPEAKERS INSTRUCTION
MANUAL
lntroduction
Congratulations
on choosing
JBL
loudspeakers.
Their highly
accurate,
uncolored
and balanced
sound character
will
greatly
increase
your
enjoyment
of
recorded
music.
JBL speakers
a¡e built
with
careful
attention to detail,
using
only
the
highest
quality
materials.
They will
provide
many
years
of excellent
perform-
ance.
The
JBL Series is the
result ofconcen-
trated
efforts to combine
traditional
JBL
performance
values
with elegant
contemporary
appearance
at affordable
prices.
Some ofthe engineering
features
of the JBL
Series are:
l)
High output
levels. This means that
modest amplifiers
or receivers
will be
able to
produce
acoustical
levels normally
associated with
amplifiers with
substan-
tially more
iated
power.
2) Smooth, extended
response. The
JBL
Series 12
mm
pure
titanium dome
tweeter,
polymer
laminated
cone drivers
and
carefully designed
dividing network
deliver clear,
crisp,
quality
sound.
3) Accurate time/phase
response.
Speakers in the JBL
Series exhibit
the
same
precise
"tum-on, tum-offl' charac-
teristics
of JBL's larger
home and studio
loudspeaker
systems. This means
more
accurate
realization of the high
frequency
detail in
today's digital recordings.
4)
Accurate stereo imaging.
The in-line
component
afrays
on the baffle ensure the
best
possible
stereo imaging for listeners
both on axis
and off.
.!
.\!
Placement
For the best stereo reproduction,
the two
loudspeaker systems should
be
placed
an
equal distance
from
your
listening
position
and
separated so that
the angle
between
them, at the listening
position,
is
between
40 and 60 degrees
(see
Fig. 1).
For example, if
your
listening
position is
8 to 12 feet
(2.5
to
4.5 m) from each
speaker, the two systems
should be about
8 feet
(2.5
m) apart.
Placing the loudspeakers
in comers or
against
a wall will result in the strongest
(but.not
necessarily the most aocurate),
bass.
Compact
systems
will
also
benefit
from
placement
on stands
or shelves.
For
the
best stereo
imaging, we recommend
that the systems be
placed
so that
the high
frequency transducers
are as close as
possible
to the
ear level of a seated
Iistener. Every room is different-and
there a¡e.different
tastes. Sodonrt
.
hesitate to experiment on
your
own.
Connections
To connect
the
loudspeaker
systems to
the receiver
or
amplifier, use two:'
conductor
insulated
wire.
Your JBL
dealer'ca¡ recommend suitable cables; or
you
can buy
wire
at most hardware stores.
We recommend #18 AWG
(1
mm
diameter) wire
as a
minimum
size. If
your
speakers are more than
30
feet
(10
m) from
your
receiver or amplifier,
use larger diameter
wire.
Connections are
made at the terminals located on the back
of
the loudspeaker.system,
near the
bottom edge.
The
terminals accept bare
wire
or banana
plugs,
either of
which
will
provide
easy, secure connections. To
prepare
the
wire,
strip approximately
U}-inch(l3
mm)of insulation. Each
conductor
is
made up of fine
strands of
wire;
twist the strands together. Push
down on the button
below
the
terminal
and insert the wire through the
hole
(see
Fig. 2).
For each channel, the red terminal on the
loudspeaker
should be connected to the
red or
(+)
loudspeaker connection
terminal on the receiver
or
amplifier.
The
black terminal on the loudspeaker
should
be connected to the black or
(-)
loudspeaker connection
terminal on the
receiver or amplifier..
.Connecting
the
loudspeakers in
this
manner
ensures that
they
will
be in
phase;
that is, work
together rather than in
opposition.
Connecting the loudspeakers out ofphase
will
not damage them, but will result in
less bass and
poor
imaging. Most two-
conductor
wire
is color coded, or has a
ridge on one of its insulating
jackets,
so
that
you
can easily identify which
wire
is
connected
to
which
terminal
(Fig.
2).
Fig.2
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General Care
The
grille
is held
in
place
by
pins
near the
edges. To
remove the
grille,
grasp
it
by
both
top and
bottom
edges and
pull
gently.
To replace the
grille,
reposition
it
carefully
and
press
gently
at the comers.
Do not
push
on the center
area ofthe
grille.
The Ioudspeaker
enclosure may be
cleaned with a slightly damp
cloth.
The
grille
may be
gently
vacuumed,
and stains can be
removed with an
aerosol cleaner
following the manufac-
turer's instructions.
Never use any
solvents to clean
any
part
of
the system.
Seruice
Should
your
loudspeaker
ever need
service, retum it to the JBL dealer
from
whom it
was
purchased.
If for some
reason this
is impractical, write directly
to
the JBL Customer
Service DeparÍnent,
describing the
problem
as
fully as
possible.
Do not retum
products
to the
JBL factory
without
prior
authorization.
ì
6
t
t
f
T
echnical Specifications
JBL2SOO
JBL26OO
JBL2SOO
JBL3SOO JBL4SOO
High Frequency
Transducel
12 mm
titanium dome
12 mm
titanium dome
12 mm
titanium dome
12 mm
titanium dome
12 mm
titanium dome
Low
Frcquency
Transducer
5.25" high
polymer
6.5" high
polymer
laminate laminate
8" high
polymer
laminate
8/ high
polymer
10" high
polymer
laminate
laminate
Midranqe-
Tmnsducer
5'
high
polymer
5"
high
polymer
laminate
la¡ninate
Crossover
Frequency
3 Wlz
3
kllz 2.5 kJIz
800
Hz
4.5 Wlz
800
Hz
4.5 kJIz
Frequency Ræponse
(-6
dB)
7O Hz to 23 kllz 45 Hz to 23 k}lz 4O Hz to 23
kllz
35
Hz
to
23 kJIz 35 llz to 23 Wlz
Sensitivity
(1
WatUl metefl
88 dB
89
dB
89 dB 89
dB 9l dB
Nominal
lmpedance
8 Ohms 8 Ohms 8 Ohms
8
Ohms
8 Ohms
Recommended
AmPlifiel
Power'
lo to
80 watts
l0 to 100 Watts t0 to 125 watts 10 to 150 watts
10
to
150 wâtts
Ertemal
DimenSiOnS
12" x7.25" x 6.375"
(HxwxD)
Itirffi;
rer mm
17"x 9"x 8.3'15" 22.5"x llt'x l0t'
432mmx229 nm 572nmx279 mm
x 213 mm x 259 mm
32"x ll"x 10"
34httx13"xll/¿"
813 mm x279 mn
876.3mmx330.2mm
x 259 rnm
x 298 mm
lVeight
(each)
8 lbs.
(3.6
kgs.) 12 lbs.
(5.4
kgs.) 20 lbs.
(9.0
kgs.) 29 lbs.
(13.2
kgs.) 36 lbs.
(16.3
kgs.)
+Undistorted
continuous
power
per
channel.
JBL Consurner
Products
lnc.
JBL
ín
the USA
240
Crossways
Park West
Woodbury, N.Y. 11797
Printed
in
USA
All
contents
1988
JBL
Consumer
Products Inc.
Part JBL Series
#70737
