JBL MS620 - Manual (Page 2)

About These Instructions:
Installation of stereo components can
require extensive experience with a
variety of mechanical and electrical
procedures. Although these instruc-
tions explain how to install JBL
Marine speakers in a general sense,
they do not show the exact installa-
tion methods for your particular
application. If you do not feel you
have the experience, do not attempt
the installation yourself, but instead
ask your authorized JBL marine-
audio dealer about professional
installation options.
Loud Music and Hearing:
Playing loud music in a marine envi-
ronment can permanently damage
your hearing, as well as hinder your
ability to hear marine traffic. The
maximum volume levels achievable
with JBL speakers, combined with
high-power amplification, may
exceed safe levels for extended
listening. JBL accepts no liability for
hearing loss, bodily injury, or property
damage as a result of use or misuse
of this product.
General Care:
The loudspeaker grilles may be
cleaned with a damp cloth. Do not
use any cleaners or solvents on the
grilles or the speaker cones.
About Power Handling:
JBL Marine speakers will produce
reasonable volume levels with little
amplifier power. Moreover, adding
an amplifier to drive your speakers
and a subwoofer will enhance your
system’s dynamic range, and help
overcome ambient noise.
Although JBL Marine speakers are
designed to handle the power of a
dedicated amplifier driven at or
below its rated power, make sure the
amplifier is not driven far above its
rated power. Doing so will “clip” the
output signal and can damage any
speaker. Distorted or “fuzzy” sound
from your speakers is an indication
that the amplifier has exceeded its
rated power, and you should reduce
the volume level.
Installation Tips:
• Always wear protective eyewear
when using any tools.
• Turn off all audio components and
other electrical devices before you
start. Disconnect the negative (–)
lead from your marine battery.
• Keep speakers in their package
until final installation. When moving
a speaker, always rest it with the
cone or dome facing up. Never use
force to install any speaker.
• Check clearances on both sides of
a planned mounting surface before
drilling any holes or installing any
screws. Remember that the screws
can extend behind the surface.
• At the installation sites, locate
and make a note of all fuel lines
and electrical wiring. Use extreme
caution when cutting or drilling
in and around these areas.
• Before drilling or cutting holes, use
a utility knife to remove unwanted
fabric or vinyl to keep material from
snagging in a drill bit or saw.
• The stainless-steel hardware
provided with your JBL Marine
speakers has been chosen to
resist rust and corrosion.
Installation Warnings and Tips JBL Marine Speakers
02