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6

Preparing the hookup wire
1. First determine the distance

between your amplifier and the
most distant speaker in each
group (fronts, surrounds,
subwoofers).

2. Now make the hookup wires for

all speakers in each group
(fronts, surrounds, subwoofers)
this length, even if one HT
Series loudspeaker is much
closer to your amplifier than the
other. This will help maintain
proper signal balance.

3. Strip off 3/8" of insulation from

both ends of each conductor.

4. Twist each set of thin wires into

a tightly-bunched spiral.

5. Now find a visual difference

between the two conductors of
each molded pair of speaker
wire. Differentiating marks can
be a different color wire
(copper or "silver"); a strand of
yarn in one conductor; thin,
raised ribs on one part of the
outer insulation; or a printed "+"
marking on one of the
insulators. It doesn't matter
which of the two strands of wire
go to (+) and (-) on the
speakers and amplifier, as long
as all speakers are connected
identically.  Unscrew the
binding post, insert the wire
into the hole, then re-tighten
the binding post. If using
banana plug type wire
connectors just insert them
directly into the posts making
sure the lug on the negative (-)
side of the banana plug is
placed  into the black binding
post. For each channel,
connect the red terminal on the
loudspeaker to the red or (+)
loudspeaker connection

terminal on the amplifier and
the black to the black or (-).
Connecting the loudspeakers
this way ensures that they will
be in phase; that is, work
together, not in opposition.
Connecting the loudspeakers
out of phase will not damage
them, but will result in less
bass and poor imaging.

HOOK UP TO AMPLIFIER
Connect your HT speakers to your
amplifier following the Red (+) to
Red and Black (-) to Black
convention as outlined in the last
section.

LEFT and RIGHT FRONTS
As seated in your viewing area,
the front speaker to your left
should be connected to the
terminals labeled "Left Front" on
the amplifier. The speaker to the
right should be connected to the
amplifier terminals labeled "Right
Front".

CENTER CHANNEL
Your remaining front channel
speaker (located above, below or
behind the screen) should be
connected to the amplifier
terminals labeled "Center
Channel".

SURROUNDS
As seated in your viewing area,
the surround speaker to your left
should be connected to the term-
inals labeled "Left Surround" of
the amplifier. The surround
speaker to the right should be
connected to the amplifier
terminals labeled "Right
Surround".

7

Left
Front

Blk Red
  (-) (+)

• •

Right
Front

Right
Surround

Left
Surround

Amplifier

Left
Surd

Right
Surd

Center
Front

Left
Front

Right
Front

Center
Front

Blk Red
  (-) (+)

• •

Blk Red
  (-) (+)

• •

Blk Red
  (-) (+)

• •

• •

• •

• •

• •

• •

(-) (+)

(-) (+)

(-) (+)

(-) (+)

(-) (+)

+

+

-

-

+

+

-

-

First Subwoofer

Second Subwoofer

+

+

-

-

Second Subwoofer

+

+

-

-

First Subwoofer

• •

(-) (+)

Subwoofer

(Wires to Subwoofer)

+

+

-

-

Subwoofer

Blk Red
  (-) (+)

• •

8

SUBWOOFERS
You may connect your subwoofers
in several ways depending on how
many subwoofer amplifier outputs
are available. Read the following
instructions carefully to insure
proper hook-up of your
subwoofers. Improper hook-up
can degrade performance or even
damage to your amplifier.
REFER TO SUBWOOFER
HOOK-UP DIAGRAM.
Note: You will need at least one
subwoofer amplifier channel to
drive your passive HT1S
Subwoofers.

Using two HT1S Subwoofers
(from single subwoofer
amplifier terminal output).
Connect the wire from the
amplifier speaker terminal marked
"Subwoofer" to the left-hand set
of Red and Black binding posts on
the 

first subwoofer. Make sure

you follow the Red (+) to Red and
Black (-) to Black convention.
Unscrew the right-hand binding
posts and remove the connecting
strap. Place the strap with your
owner's manual for safekeeping.
Run a second wire from the right
hand binding post of the 

subwoofer over to the second
subwoofer and connect to the
left-hand binding posts. DO NOT
remove the strap connecting the
second subwoofer's right-hand
set of binding posts. This results in
a series connection of your
subwoofers that will not damage
your amplifier. Your dual
subwoofer connection is complete.
See figures on page 7.

Using two HT1S Subwoofers
(from two subwoofer amplifier
terminal outputs).
If your amplifier is equipped with

two subwoofer outputs, you must
determine how they are wired. If
they are two parallel-wired outputs
from the same amplifier channel,
wire the subwoofers as in the
previous paragraph to only one
output.. If on th other hand, they
are two separate channels of
amplification, follow the hook-up
method described under "Using a
single HT1S Subwoofer". Connect
wires from one amplifier subwoofer
output terminal to the first
subwoofer's left-hand binding
posts 

leaving the connecting strap

in place on the right-hand binding
posts. Connect wires from the
other amplifier subwoofer output
terminal to the other subwoofer's
left-hand binding posts 

leaving the

connecting strap in place on the
right-hand binding posts. Your
dual subwoofer connection is
complete. See figures on page 7.

Using a single HT1S Subwoofer.
Connect the wire from the
amplifier terminal marked
"Subwoofer" to the left-hand set
of Red and Black binding posts on
the subwoofer. Make sure you
follow the Red (+) to Red and
Black (-) to Black convention. DO
NOT remove the strap connecting
the right-hand set of binding posts.
Your single subwoofer connection
is complete.

9

Bass is very weak AND/OR
sound seems to come from,
instead of between the speakers
1. The polarity (+ & -) of one

speaker has been reversed
relative to the other. Double
check connections.

2. Speakers are too far away from

the back and side walls or too
far apart. Experiment again
with the speaker placement. If
you are still encountering
problems, consult your JBL
dealer.

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 grille, re-position it
carefully and press gently at the
corners. Do not push on the center
area of the grille.

The loudspeaker cabinet may be
cleaned with a slightly damp cloth.
To remove dust from the grille
cloth, use a vacuum with a brush
attachment. Spots may be
removed with a commercial spot
remover. Do not use any cleaners
or  solvents on the speaker drivers
themselves.

SERVICE
Should your loudspeaker ever
need service, return it to the
JBL dealer from whom it was
purchased. If this is impractical,
call 800-336-4JBL for your nearest
warranty station. Do not return
products to the JBL factory without
prior authorization.

TROUBLESHOOTING
The vast majority of new speaker
"malfunctions" end up being
traced to connections or switch
settings. To avoid requesting
service for correctly functioning
speakers, check the following tips
before requesting service.

No sound at all or very faint
sound from either speaker
1. Amp/receiver tape monitor

button pushed in while using
CD, FM or phono inputs.

2. Wrong speaker switch, "A" or

"B" speaker output.

3. Sound source (CD,cassette

deck, turntable) not turned on,
not activated, not hooked up or
not selected on amp/receiver
front panel.

No sound from one speaker
1. Balance control turned all the

way left or right.

2. Speaker wire has become

disconnected.

3. One of the connections

between sound source and
amp/receiver is faulty or has
become disconnected.

Both speakers play at low
volumes but shut off as volume
is increased OR sound turns on
and off intermittently
A few strands of speaker wire may
be shorting out. Recheck the
connections.