Numark Industries DM 1885X - Manual (Page 7)

DM1885X
IMPORTANT INFORMATION...
Please read this entire manual before connecting the DM1885X to your system.
For optimum performance:
• Always make sure that AC power is OFF
while making any connections.
• Do not use excessively long cables (i.e.
over 50ft/14m) Be sure plugs and jacks are
tightly mated. Loose connections can cause
hum, noise or intermittents that could easily
damage your speakers.
• Never use spray cleaners on the slide
controls. Residues cause excessive dirt build-
up and this will void your warranty. In normal
use slide controls can last for many years. If
they malfunction (usually because of a dirty or
dusty environment) consult a professional
technician.
• Never attempt to make any adjustments or
repairs other than those described in this
manual. Take the DM1885X to your dealer or to
an authorized Numark Service Center.
A NOTE ON CABLES:
Make the input and output connections
with readily available low-capacitance
stereo cables. Quality cable makes a
big difference in audio fidelity and
punch. Use balanced connections
whenever possible. See your Numark
dealer or an electronics or audio
specialist store if you are not sure which
cables to get.
SYSTEM PRECAUTIONS
• Use appropriate cables throughout your
system: Quality shielded audio cables and
terminated shielded video cables, low-
capacitance preferred. Speaker cables must be
14-gauge minimum; 12- or 10-gauge is better.
• Reliability will be enhanced through the use
of banana connectors on the speaker wires.
Observe correct speaker wire polarity. If in
doubt, consult your Numark dealer or a qualified
technician.
• Take care to connect only one cable at a
time. Pay attention to the color-coded, labelled
Input and Output jacks.
• ALWAYS remember: “TURN AMPS O N
LAST AND OFF FIRST”. Begin with master
faders or volume controls on minimum and the
amplifier gain/input control(s) down. Wait 8 to 10
seconds before turning up the volume. This
prevents transients which may cause severe
speaker damage.
• Use restraint when operating controls. Try to
move them slowly. Rapid adjustments could
damage speakers due to amplifier clipping.
• Avoid amplifier “clipping” at all costs:
this occurs when the red LEDs (usually on the
front panel of most professional power
amplifiers) start flashing. “Clipping” is when
the power amplifier is distorting and working
beyond it’s limits. Amplifier distortion is THE
major cause of speaker failure.
• To prevent fire or shock hazard, do not
expose the unit to rain or moisture. Never
place cans of beer, soda, glasses of water
or anything wet on top of the mixer!
Numark - The Proven Leader in DJ Technology
©1997 Numark Industries 7 http://www.numark.com