display. Installing the HTI88 near a
corner will tend to maximize low-
frequency output. Be cautious
when installing in a corner, to
avoid a “boomy” sound. Also take
into consideration any unusual
features of the room, such as an
alcove, which may tend to create
a localized node that may affect
bass response in that area of the
room.
THANK YOU FOR
CHOOSING JBL PLACEMENT
SPEAKER
For more than 50 years, JBL has
been involved in every aspect of
music and film recording and
reproduction, from live perform-
ances to monitoring the recordings
you play in your home, car or
office.
It is best to establish the locations
for the speakers in advance, to
avoid having to correct errors
after installation has already
begun. Refer to these guidelines,
and also see the owner’s guide for
the HTI88 subwoofer for more
information.
We’re confident that the JBL
speaker and back box you have
chosen will provide every note of
enjoyment that you expect – and
that when you think about pur-
chasing additional audio equip-
ment for your home, car or office,
you will once again choose JBL.
Please take a moment to register
your product on our Web site at
you posted on our latest advance-
ments, and helps us to better
understand our customers and
build products that meet their
needs and expectations.
It is generally recommended that
you install your HTI88 in-wall sub-
woofer along the same wall as the
front loudspeakers. The HTI88 sub-
woofer is not video-shielded and
should not be placed near a video
It is generally recommended that
the speaker be installed so that the
bottom of the speaker is approxi-
mately 12" from the floor. Note that
installing the speaker within the
HTI88BB back box as shown in the
illustration to the left will achieve
the recommended height. This is
to help with the low-frequency
loading (bass reinforcement).
This also helps hide the speaker
in a less visible place.
Remember that these are just
guidelines. Since every listening
room is different, JBL strongly rec-
ommends experimenting with the
positioning of your subwoofer prior
to cutting the wall to obtain the
most pleasing results in your room.
One technique that can help you
find the ideal subwoofer location
is to temporarily borrow a stand-
alone subwoofer and place it near
the main listening location. Then
move around the room and deter-
mine where you hear the most
pleasing bass performance. This
would then be the ideal location
for the subwoofer.
14.00
CABINET
JBL Consumer Products
DAMPING
PADS
INCLUDED
HTI88BB
One HTI88BB back box (shown installed
between 16" on-center wall studs)
(4) L-brackets
(8) #10 32 x 1" screws
(L-brackets to back box)
(8) #10 split washers
(L-brackets to back box)
(8) #10 flat washers
(L-brackets to back box)
(8) #8 x 3/4" wood screws
(L-brackets to wall studs)
(2) wood centering bars
LOCATING
BARS
(4) #10 32 x 1-1/2" flat-head screws
(centering bars to back box)
NOTE: The back box is shipped with the
two centering bars attached to it using
the four flat-head screws.
68.00
CABINET
®
HOME THEATER
IN-WALL SERIES
4.00
2.49
HTI88BB
OWNER’S GUIDE
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INSTALLATION
Although the JBL HTI Series in-
wall speakers were designed to
be easily installed in existing con-
struction applications, it is recom-
mended that installation of the
HTI88BB back box in new con-
struction be reserved for profes-
sionals. See the manual for the
HTI88 subwoofer for instructions
on installing the speaker in exist-
ing construction without using
the back box.
See
Detail A
Detail C
L-Brackets
See
Detail B
6. Screw the L-brackets into the
studs, using the eight wood
screws.
The HTI88BB back box is an
optional installation accessory
for the HTI88 in-wall subwoofer.
When used, the HTI88BB back box
is installed during new construc-
tion before the wallboard.
Centering Bar
7. Remove the wood centering
bars and replace the flat-head
screws into the holes left over
(the holes left in the cabinet
face underneath the bars are
also counterbored to accept the
flat-head screws).
Installation
1. Using the four flat-head screws,
install the two centering bars as
shown in Detail B in the draw-
ings. The centering bars are for
setting the depth of the enclo-
sure. They also help locate the
left/right position of the enclo-
sure as they can be mounted
into the studs on the left and
right to hold the enclosure in the
correct location before final
mounting.
8. The enclosure is now installed
and ready for the wallboard to
be installed over it.
Centering Bar
9. Make the connections from your
receiver/amplifier to the HTI88
back box connections panel,
and to any other speakers as
appropriate for your system, fol-
lowing the instructions on the
previous page. Connect the
eight wires hanging from the
bottom of the HTI88BB back box
to the correct terminals on the
HTI88 loudspeaker (see the pre-
vious page).
See
Detail C
L-Brackets
2. Using the eight #10 32 x 1"
screws, install the four L-brack-
ets at the four corners of the
enclosure. Each of the eight
screws should have both the
split washer and flat washer
installed; the split washer goes
on first. Leave the screws a
half-turn loose at first to allow
for adjustment later (see Detail
A). Do not screw the L-brackets
to the wall studs at this time
(see step 6).
Detail A
See
Detail A
3. Fit the enclosure into the wall.
The bottom edge of the bottom
L-brackets will rest against the
baseboard 2 x 4. At this time,
make note of adjustments nec-
essary to square the enclosure
into the wall (see Detail C).
Detail B
4. After refitting and tightening the
L-brackets into the enclosure
(but not the wall studs yet), fit
the enclosure into the wall once
again.
5. At this time, you may want to
screw through each side of the
wood centering bars to mount
the enclosure to the studs. This
will help hold the enclosure in
position before the L-brackets
are mounted to the studs.
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SPECIFICATIONS
HTI88BB
Cabinet Dimensions (H x W x D):
68" x 14" x 4" (1727mm x 356mm x 102mm)
39 lb (17.7 kg)
Cabinet Weight:
All features and specifications are subject to change without notice.
PRO SOUND
COMES HOME™
OWNER’S GUIDE
PRODUCT LINE:
JBL Home Theater In-Wall Series
MODEL: HTI88BB
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
© 2005 Harman International Industries, Incorporated. All rights reserved.
JBL and Harman International are trademarks of Harman International
Industries, Incorporated, registered in the United States and/or
other countries. Pro Sound Comes Home is a trademark of Harman
International Industries, Incorporated.
Part No. 361577-001
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