JBL J216 User manual

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I
eRe
Congratulations on choosing JBL. loudspeakers. Their
high accuracy, low distortion, and wide dynamic capabilities
will greatly increase your enjoyment of recorded music. JBL
speakers are built with careful attention to detail, using only
the highest-quality materials. They will provide many years of
excellent performance.
The brief instructions in this manual explain proper
placement and connections to help you realize the full
potential of your JBL loudspeakers.
Placement
a
For the best stereo reproduction, the two loudspeaker
systems
should
be
equally
distant
from
your
listening
posi-
tion and separated so that the angle between them, at the
listening
position,
is
between
40°
and
60°
(See
illustration.)
For example, if your listening position is 8 to 12 feet from
each
speaker,
the
two
systems
should
be
about
8
feet
apart.
Placing the loudspeakers in corners or against a wall will
result
in
the
strongest
(but
not
necessarily
the
most
accurate)
bass.
Compact
systems
will
also
benefit
from
placement
on
a stand or shelf. For the best stereo imaging, we recommend
that
the
systems
be
placed
so
that
the
high
frequency
driv-
ers are as close as possible to the ear level of a seated
listener. Every room is different— don't hesitate to experiment
with placement in yours.
40°—60°
LOUD- LOUD—
SPEAKER SPEAKER

Connections
To connect the loudspeaker systems to the receiver or
amplifier, use two-conductor insulated wire. Your JBL dealer
can recommend suitable cables, or you can buy wire at most
hardware stores. We recommend #18 AWG (1 mm diameter)
wire as aminimum size. lf your speakers are more than 30
feet (10 m) from your receiver or amplifier, use larger
diameter wire.
Connections are made at the binding posts located on
the back of the loudspeaker system, near the bottom
edge. The terminals accept banana plugs or spade lug
connectors, either of which will provide easy, secure connec-
tions. The terminals will also accept bare wire. To prepare the
wire, strip approximately ’2-inch (13 mm) of insulation. Each
conductor is made up of fine strands of wire; twist the
strands together. Partially unscrew the plastic nut on each
terminal, and insert the wire through the hole in the post. (See
illustration.) Tighten the plastic nut by hand.
For each channel, the red terminal on the loudspeaker
should be connected to the red or (+) loudspeaker con-
nection terminal on the receiver or amplifier, and the black
terminal on the loudspeaker should be connected to the
black or (—) terminal on the receiver. Connecting the loud-
speakers in this manner ensures that they will be in phase;
that is, work together rather than in opposition. Connecting
the loudspeakers out of phase 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.
General Care
The grille is held in place by dowel pins near the edges.
To remove it, grasp it by both top or both bottom edges and
pull gently. To replace the grille, reposition it on the dowel pins
and press gently at the corners. Do not push on the center
area of the grille.
The loudspeaker systems are finished on all sides in
vinyl, and may be cleaned with a damp cloth. The grille may
be gently vacuumed, and stains can be removed with an
aerosol cleaner, following the manufacturer’s instructions.
Never use any solvents to clean any part of the system.
3

Should
your
loudspeaker
system
ever
need
Service,
return
it
to
the
JBL
dealer
from
whom
it
was
purchased.
If
for
some
reason
this
is
impractical,
write
directly
to
the
JBL
Customer
Service
Department,
describing
the
problem
as
fully
as
possible.
Do
not
return
products
to
the
JBL
factory
without
prior
authorization.
JBL
continually
engages
in
research
related
to
product
improvement.
New
materials,
production
methods,
and
design
refinements
are
introduced
into
existing
products
without
notice
as
a
routine
expression
of
that
philosophy.
For
this
reason,
any
current
JBL
product
may
differ
in
some
respect
from
its
published
description
but
will
always
equal
or
exceed
the
original
design
specifications
unless
other-
wise
stated.