General Care - Harman JBL LX Serie Manual De Instrucciones

loudspeaker should be connected to the red (+) loudspeaker terminal on the amplifier or
receiver, and the black terminal on the loudspeaker to the black (÷) loudspeaker terminal
on the amplifier or receiver. Connecting the loudspeakers in this manner ensures that
they will have the same polarity ("in phase"). Connecting the loudspeakers with different
polarity will ont damage then, but will result in less bass and a poor stereo imaging. This
can be determined by listening to a solo voice f.e. on the radio: if the voice can be
located to come from the space between the two loudspeakers the speakers are
connected with the same polarity. If not, the voice will sound diffuse and be difficult to
place in the space.
Most two-conductor wire is colour-coded or has a ridge on one of its insulating
jackets, so that you can easily identify which wire is connected to which terminal.
When connecting more than one pair of loudspeakers to an amplifier or receiver
consult your dealer or amplifier manufacturer to ensure that the resulting load can be
handled safely.
Generally loudspeakers can withstand a great deal of power, as long as the signal
is undistorted. You can safely use a power amplifier with a power rating greater than the
loudspeaker systems recommended power, as long as the amplifier is not driven beyond
it limits. When amplifiers are overdriven, they "clip" the signal, creating distortion which
appears as high frequency signal. These high frequency signals are directed to the high
frequency transducer by the cross-over network, thereby creating a dangerous condition
for the smallest driver in the loudspeaker system.
The smaller the amplifier you use, the greater the danger of overdriving the amp,
and consequently the greater the potential danger to the high frequency transducer.
Further excessive boost of the tone controls of the amplifier or receiver can
aggrevate the situation.
The advice is always to use an amplifier or receiver that will make your LX
loudspeakers play reasonably loud and at the same time sound clean and undistorted.
JBL LX Series loudspeaker systems are constructed of high quality particle board,
superior to solid wood in its acoustic properties. They are buildt to give many years of
trouble-free service, and do not require special attention.
Occasional dusting with a clean, soft cloth will maintain the original beauty of the
finish. Furniture waxes, polishes or cleaners are not recommended.
The grille may be gently vacuumed, and stains can be removed with an aerosol
dry cleaner, following the manufacturers instructions. Never use any solvents to clean
any part of the system.
Should your JBL LX Series loudspeaker ever need service, return it to the JBL
dealer from whom it was purchased. If for some reason this is impractical, contact your
local JBL distributor.
DANGER: LOW POWER

GENERAL CARE

SERVICE