K2S4800 (serv.man2) - JBL Audio User Guide / Operation Manual. Page 8

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CHAPTER 2 – UNPACKING THE S4800 SYSTEM
All components of the S4800
system have been very carefully
packed for maximum protection
against damage. 
As with any superior audio product,
it is advisable to keep the original
packing materials in case it is
necessary to transport the S4800
system.
Because of the bulk and weight of
this loudspeaker, at least two
people are required to unpack it in
the following manner: Open the
front as well as the top of the
carton. Slowly and carefully “walk”
the loudspeaker in its Styrofoam
end pads out of the carton. Two
people may then lift the system out
of the end pads.
The four spiked feet are pre-
installed in the bottom of the S4800
in four locations. Four metal
coasters are packed in the end
pads. These are to be placed
between the feet and the floor for
further protection of floor
coverings. See Figure 6.
Figure 6. Inserting
spiked feet.
CHAPTER 3 – SELECTING CABLE
Speaker wire and interconnecting
cables are critical components in
any audio system. With a system
such as the S4800, they assume a
new level of importance.
S4800 loudspeakers are internally
wired with high-quality copper
Monster Cable, specially designed
for JBL. The same care that was
given to the selection of internal
system wiring should be afforded to
the selection and application of the
cables that will connect S4800
loudspeakers to other system
components.
It is advisable to use high-quality
wire, such as Monster Cable, and
to select the highest-grade wire
available from the manufacturer.
Many manufacturers produce
audiophile cables worth
considering for the S4800. As with
all electronics and associated
components, however, every
manufacturer offers products of
varying quality to suit a range of
budgets and applications.
We recommend using an
audiophile-quality speaker wire of
not less than 16 gauge for
connections up to 15 feet (5 meters)
as a minimum requirement. If your
connections will be longer, heavier-
gauge wire is recommended. JBL
specialist dealers have the
experience and knowledge to
recommend suitable speaker wire
to best complement a particular
system.
The amount of speaker wire
required will depend on the
distance between the loudspeakers
and amplifier(s), how many
amplifiers will be used, and the
method you select for connecting
the amplifier and loudspeakers
(passive or bi-wire; see Chapter 6).
For maximum signal purity, it is
advisable to locate the amplifier(s)
as close as possible to the
loudspeakers, even if this means
that a longer distance will be
needed between the amplifier(s)
and preamplifier.
Both the left and right speaker/
amplifier connections should be the
same length. If the distance
between one speaker and the
amplifier(s) is greater than the
other speaker and amplifier(s), use
the longer length for both
connections.
For bi-wire connections, the same
type of wires may be used for both
the low-frequency and high-
frequency sections to reduce wire
effects (resistance, inductance,
etc.) and to avoid intermodulation
of low and high frequencies in the
wires. Specialized wires for low-
frequency and high-frequency
sections may yield excellent
results. Whatever wires are used,
be sure that the low-frequency
wires are as short as possible, and
the left and right wires for each
section are the same length.
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