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S26II, S38II,
O W N E R ’ S G U I D E
P R O D U C T L I N E :
STUDIO™ SERIES
D E S I G N G O A L : Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
T W E E T E R T Y P E : Pure-titanium dome with EOS™ waveguide
W O O F E R T Y P E : Cast-aluminum basket with HeatScape™ motor structure
C R O S S O V E R N E T W O R K : Straight-Line Signal Path™ (SSP)
P O R T D E S I G N : FreeFlow™ flared
P R O F E S S I O N A L R E F E R E N C E : Studio Monitor
S P E A K E R P L A C E M E N T
Proper placement of the
loudspeakers. Use these
placement recommendations
as a guide. Slight variations
will not diminish your
All of the Studio Series
loudspeakers are video-
shielded and can safely be
placed near a television.
speakers is an important step
in obtaining the most realistic
soundstage possible. These
recommendations are for the
optimum placement of the
listening pleasure.
MODELS: S310II, S312II
MODEL: S26II
As Front Speakers
As Surround Speakers
5 –6 ft.
MODEL: S38II
The S38II can be oriented
either horizontally or
vertically; however, best
performance will result from
horizontal placement. The
logo may be oriented as
needed by gently pulling it
out slightly, rotating it, and
releasing it so that it snaps
into place. Although these
loudspeakers are designed
as a mirrored pair, the
decision as to which one is
left or right will depend on
the amount of space left
between them.
For stereo-only applications:
A wider stereo image is
presented with the
Less than 6–8 feet
tweeter/midrange array
outboard, and a tighter image
is presented with the array
inboard.
More than 6–8 feet
For home theater applications:
This placement provides a
wide spread in sound,
supplemented by the center
channel speaker.
0-2 ft.
3
S P E A K E R C O N N E C T I O N S
CONNECTION TIPS
RIGHT
LEFT
–
+
–
+
–
+
–
+
Speakers and electronics
terminals have corre-
sponding (+) and (–)
terminals. It is important
to connect both speakers
identically: (+) on the
speaker to (+) on the
amplifier and (–) on the
speaker to (–) on the
amplifier. Wiring “out of
phase” results in thin
sound, weak bass and a
poor stereo image. With
the advent of multichannel
Receiver’s Speaker Outputs
surround-sound systems,
connecting all of the
speakers in your system
with the correct polarity
remains equally important
in order to preserve the
proper ambience and
directionality of the
the pass-through hole in
the center post is visible
under the collar. Insert the
bare end of the wire
through this hole; then
screw the collar down
until the connection is
tight. The hole in the
program material.
center of each collar is
intended for use with
banana-type connectors.
To use the binding-post
speaker terminals,
unscrew the collar until
MODELS: S310II, S312II
These models feature four
rubber feet that enable
them to be placed on a
smooth-surfaced floor,
such as tile or hardwood.
Four metal spikes are
supplied for use when the
speaker is to be placed on
a carpeted surface to
are screwed in completely
for stability.
wall behind them, using
the same procedures and
hardware customary for
anchoring bookcases and
wall units. Customer is
responsible for proper
installation and proper
selection of hardware.
NEVER drag the speaker
to move it, as this will
damage the spikes, the
feet and/or the wood
cabinet itself. Always lift
the speaker and carry it to
its new location.
decouple the speaker from
the floor and prevent
MODELS: S26II, S38II
CAUTION: Floorstanding
(tower) loudspeakers have
a high center of gravity
and may become unstable
and tip over during
earthquakes or if rocked,
tipped or improperly
positioned. If this is a
The supplied self-adhesive
felt pads may be attached
to the bottom corners of
your speakers to protect
your furniture.
unwanted damping. To
insert the spikes, gently lay
the speaker on its side (not
its front or back) on a soft,
nonabrasive surface. Each
spike screws into the
threaded insert in the
center of each rubber foot.
Make sure all four spikes
concern, these speakers
should be anchored to the
4
T R O U B L E S H O O T I N G
If there is no sound from
any of the speakers:
i.e., the speaker that was
not working still has no
your system for use with
digital “.1” surround
sound and the speaker that formats.
was working is still fine. If
• Check that receiver/
amplifier is on and that a
source is playing.
the problem is in the same
If there is no sound from
place, the source of the
problem is most likely with
your receiver or amplifier,
and you should consult the
owner’s manual for that
product for further
information. If the problem
has followed the speaker,
consult your dealer for
further assistance or,
if that is not possible,
visit our Web site at
• Review proper operation
of your receiver/amplifier.
the surround speakers:
• Check all wires and
connections between
receiver/amplifier and
speakers. Make sure all
wires are connected.
Make sure none of the
speaker wires are frayed,
cut or punctured.
• Review proper operation
of your receiver/amplifier
and its surround sound
features.
If there is no sound
coming from one speaker:
• Check the “Balance”
control on your
receiver/amplifier.
• Check all wires and
connections between
receiver/amplifier
and speakers.
information.
• Make sure the movie or
TV show you are watching
is recorded in a surround
sound mode. If it is not,
check to see if your
• Make sure no wires are
touching other wires or
terminals and creating a
short circuit.
If the system plays at low
volumes but shuts off as
volume is increased:
• Make sure all wires are
connected. Make sure
none of the speaker wires
are frayed, cut or
receiver/amplifier has
other surround modes you
may use.
• Check all wires and
connections between
receiver/amplifier
and speakers.
•
In Dolby Digital or DTS
punctured.
mode, make sure your
receiver/processor is
configured so that the
surround speakers are
enabled.
• Review the operation of
your DVD player and the
jacket of your DVD to make
sure that the DVD features
the desired Dolby Digital or
DTS mode, and that you
have properly selected
that mode using both the
DVD player’s menu and the
DVD disc’s menu.
• Make sure all wires are
connected. Make sure
none of the speaker
wires are frayed, cut or
punctured.
®
• In Dolby* Digital or DTS
mode, make sure that the
receiver/processor is
configured so that the
speaker in question is
enabled.
• If more than one pair of
main speakers is being
used, check the minimum
impedance requirements
of your receiver/amplifier.
• Turn off all electronics
and switch the speaker in
question with one of the
other speakers that is
working correctly. Turn
everything back on, and
determine whether the
problem is in the same
place, i.e., the speaker that
was working previously
now has no sound and the
speaker that was not
working now sounds fine;
or whether it has moved,
If there is no (or low) bass
output:
• Make sure the polarities
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.
• Consider adding a
powered subwoofer to
5
S P E C I F I C AT I O N S
S26II
S38II
Description: 2-Way 6" bookshelf
3-Way 8" horizontal/vertical,
mirror-image bookshelf
Maximum Recommended
Amplifier Power**: 150W
175W
Nominal Impedance: 8 Ohms
Sensitivity (2.83V/1m): 87dB
8 Ohms
89dB
Frequency Response (–3dB): 48Hz – 20kHz
Crossover Frequency(ies): 2000Hz
45Hz – 20kHz
800Hz, 3200Hz
High-Frequency Transducer: 1" Pure-titanium dome, with
rubber surround, shielded;
1" Pure-titanium dome, with
rubber surround, shielded;
Elliptical Oblate Spheroidal™
(EOS) waveguide
Elliptical Oblate Spheroidal™
(EOS) waveguide
Midrange Transducer: NA
4" PolyPlas™ (polymer-coated
cellulose fiber) cone, rubber
surround, shielded; Linear Field
Proximity™ (LFP) bezel
Low-Frequency Transducer(s)
:
6" PolyPlas™ (polymer-coated
8" PolyPlas™ (polymer-coated
cellulose fiber) cone, rubber
surround, SFG , magnetic
cellulose fiber) cone, rubber
surround, SFG , magnetic
™
™
shorting rings, high-temp
oversized Kapton voice coil,
shorting rings, high-temp
oversized Kapton voice coil,
®
®
HeatScape™ motor structure,
HeatScape™ motor structure,
cast-aluminum baskets, shielded
cast-aluminum baskets, shielded
Baffle: Low Diffraction, IsoPower™
Port: FreeFlow™ flared
Low Diffraction, IsoPower™
FreeFlow™ flared
Network: Straight-Line Signal Path™ (SSP) Straight-Line Signal Path™ (SSP)
Terminals: All-metal, gold-plated, 5-way
All-metal, gold-plated, 5-way
binding posts
binding posts
Dimensions (H x W x D): 17" x 9-1/2" x 9-1/2"
In horizontal configuration:
11-1/2" x 17-1/2" x 11-3/4"
292mm x 445mm x 298mm
432mm x 241mm x 241mm
Weight per Speaker: 22 lb/10kg
28 lb/12.7kg
6
S310II
S312II
Description:
3-Way 10" floorstanding
3-Way 12" floorstanding
Maximum Recommended
Amplifier Power:**
200W
250W
Nominal Impedance:
Sensitivity (2.83V/1m):
8 Ohms
8 Ohms
91dB
92dB
Frequency Response (–3dB):
Crossover Frequencies:
High-Frequency Transducer:
37Hz – 20kHz
850Hz, 3500Hz
35Hz – 20kHz
750Hz, 3000Hz
1" Pure-titanium dome, with
rubber surround, shielded;
Elliptical Oblate Spheroidal™
(EOS) waveguide
1" Pure-titanium dome, with
rubber surround, shielded;
Elliptical Oblate Spheroidal™
(EOS) waveguide
Midrange Transducer:
4" PolyPlas™ (polymer-coated
cellulose fiber) cone, rubber
surround, shielded; Linear Field
Proximity™ (LFP) bezel
4" PolyPlas™ (polymer-coated
cellulose fiber) cone, rubber
surround, shielded; Linear Field
Proximity™ (LFP) bezel
Low-Frequency Transducer(s)
:
10" PolyPlas™ (polymer-coated
12" PolyPlas™ (polymer-coated
cellulose fiber) cone, rubber
surround, SFG , magnetic
cellulose fiber) cone, rubber
surround, SFG , magnetic
™
™
shorting rings, high-temp
oversized Kapton voice coil,
shorting rings, high-temp
oversized Kapton voice coil,
®
®
HeatScape™ motor structure,
HeatScape™ motor structure,
cast-aluminum baskets, shielded
cast-aluminum baskets, shielded
Baffles:
Port:
Low Diffraction, IsoPower™
FreeFlow™ flared
Low Diffraction, IsoPower™
FreeFlow™ flared
Network:
Terminals:
Straight-Line Signal Path™ (SSP) Straight-Line Signal Path™ (SSP)
All-metal, gold-plated, 5-way
binding posts
All-metal, gold-plated, 5-way
binding posts
Dimensions (H x W x D):
Weight per Speaker:
38" x 13" x 12-1/2"
965mm x 330mm x 318mm
41" x 14-3/4" x 12-1/4"
1041mm x 375mm x 311mm
55 lb/25kg
77 lb/35kg
All features and specifications are subject to change without notice.
*Trademark of Dolby Laboratories.
DTS is a registered trademark of Digital Theater Systems, Inc.
**The maximum recommended amplifier power rating will ensure proper system headroom to allow for
occasional peaks. We do not recommend sustained operation at these maximum power levels.
7
O W N E R ’ S G U I D E
P R O S O U N D
C O M E S H O M E ™
P R O D U C T L I N E :
STUDIO™ SERIES
JBL Consumer Products
M O D E L
N U M B E R S :
S26II, S38II, S310II, S312II
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
800-336-4JBL (4525) (USA only)
D E S I G N G O A L : Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
T W E E T E R T Y P E : Pure-titanium dome with EOS™ waveguide
W O O F E R T Y P E : Cast-aluminum basket with HeatScape™ motor structure
C R O S S O V E R N E T W O R K : Straight-Line Signal Path™ (SSP)
P O R T D E S I G N : FreeFlow™ flared
©2001 JBL, Incorporated
JBL is a registered trademark of JBL, Incorporated.
Part No. 338018-001
P R O F E S S I O N A L R E F E R E N C E : Studio Monitor
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