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W440P
Passive PA & Monitor loudspeaker system

Important !

Product care and maintenance:
• Do not expose the enclosure to heat sources (lamps, lights,
high power light sources, radiators or other products that
produce heat).
• Never expose the enclosure to direct sunlight, excessive
vibrations or mechanical shocks.
• Avoid operating and storing the enclosure in damp or dusty
places: this may lead to malfunctions and premature degrading
of specifications.
• Care should be taken so that objects do not fall and liquid is not
spilled onto the enclosure. In public event don't let people,
musicians, technicians or anyone put glasses, cups, ashtrays or
cigarettes on the enclosure.
• Always leave the protective grid mounted on the enclosures.
• Use a soft brush or a jet of air to clean the enclosure.
Do not use alcohol, solvents or detergents.
• Take care of your connector cables. Make sure that they are not
damaged, knotted or twisted.
• Do not force connectors and controls.
• Before performing any connection, make certain that the power
amplifier or the powered mixer are switched off.
Connection to the input sockets.
• Use only loudspeaker cables (unscreened) having suitable cross
section (at least 2 x 1 mm
) and quality. Do not twist or sharply
2
bend the cables and do not allow for knots to be formed, because
they may result in insulation damage.
• When using cables with jack plugs, make sure of using a sturdy
type, suitable for speaker use.
Do not use low quality connectors: they may easily lead to short
circuits or intermittent contacts.
10
ENGLISH
Parallel connection of two or more W440P systems.
• Connect the second system to the first one using the second (free)
socket. Both sockets may be used for input or output.
Obviously, it is always possible, if needed, to connect the power
amplifier to the first speaker system using the jack sockets, and the
first speaker system to the second one using the Speakon
vice-versa.
• PAY SPECIAL ATTENTION TO THE PARALLEL IMPEDANCE:
if two systems are parallel connected, the resulting load
impedance for the amplifier will be 4 Ohms, a value that is
within the allowed range for all power amplifiers and powe-
red mixers manufactured by Montarbo and by other
manufacturers. For 3 parallel connected systems, the resulting
total impedance decreases to 2,7 Ohms, and for 4 system to
2 Ohms. Some power amplifiers and powered mixers cannot
operate reliably with these low values of load impedance.
Always check the technical specifications of your amplifier or
powered mixer for the value of the minimum load impedance.
Hanging the speakers. Tips and warnings
The W440P speaker features 6 fly points built into the cabinet
(patented) for easily hanging it without using special or additional
accessories.
The position of the 6 fly points allows for great flexibility in terms
of speaker configuration.
☛ See examples at page 29.
In order to guarantee a safe and secure installation, observe the
following guidelines:
1 - When hanging the speakers, use only means of suspension
(in accordance with the safety regulation valid in the country
of use) having a carrying capacity rated and guaranteed by
the manufacturer.
2 - Avoid knots. Use cables with pre-made eyelets instead.
3 - Never depend on only one means of suspension for
hanging speakers (for example, one cable, passing through
several fly points to connect two speakers); always use at
least two of them and make sure they are sufficiently strong.
So, if one fails the other will sustain the load.
4 - Never hang more than three speakers together in a
cluster (each speaker is designed to support up to two
other speakers).
5 - Always make sure that the truss structure intended to
support the speakers is sturdy enough to hold their weight,
even under stressful, adverse conditions.
Always consider the effect of additional loads (for example,
wind in case of outdoor installations).
socket or
®

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