User manual

-Objects or liquid have fallen into the unit, or the unit has been exposed to rain.
-The unit was dropped or the cabinet is damaged.
-The unit does not appear to operate normally.
Keep dust, moisture, water or other liquids away from the unit. Ensure that it is protected from heat
and vibrations during both operation and storage.
This product may be capable of producing sound levels which could cause permanent hearing loss.
r at a level that is uncomfortable. The sound engineer or the
responsible for the audio system should organize proper protection for himself and for the audience,
in order to prevent exposure to potentially dangerous SPL levels. If you experience any discomfort or
ringing in the ears, or suspect an hearing loss, you should consult an audiologist.
Loudspeakers produce a static magnetic field even if they are not connected or are not in use. Take
care not to place any object close to loudspeakers, which may be damaged by magnetic fields.
To meet the EMC requirements and minimize induced noise, use only shielded balanced cables with
properly connected plugs for all signal and shield terminals.
Note that restrictions may be applied by local authorities for temporary or fix installations in relation
to harmonics and voltage fluctuations (flicker), and to specific EMC emission-immunity issues.
Note that, a acoustical interference and malfunctions
may occur if the unit is operated in the immediate vicinity of
transmitters, wireless microphones, mobile
phones, etc.). Damage to the unit is unlikely, but cannot be excluded.
When stacking loudspeakers or setting up loudspeaker stands, make sure they are standing on a firm
and flat surface. Especially if you place loudspeakers on top of one another, unwanted movements
may occur due to sound vibrations, wind, etc. Use straps to secure them against dangerous
movements. Improper stacking could result in loudspeakers falling and causing injury.
MB 12.1, MB12.2W and MB 8.1 (this one provided with U bracket adaptor) can be mounted on
loudspeaker stand (35 mm diameter). Please refer to stand documentation for detailed instructions.
Improper installation or usage could result in the loudspeaker falling and causing injury.
MB 15.2, MB MAV-2W, MB 12.0 and MB 18.0 are not intended for use on loudspeaker stand.
MB 12.0 and MB 18.0, using a proper stand, can support MB 8.1, MB 12.1 or MB12.2W.
MB MAV-2W, MB12.0 and MB18.0 are only intended for use on the floor.
Whether MB systems are suspended or not, adequate grade (at least 8.8) M10 screws must be
completely screwed into all of the threded holes, since these are parts of internal bracing structure of
the cabinet. This is also important to assure the proper acoustical performance of the systems.
The handles on loudspeakers are for transportation. They are not designed for suspension or hanging.
Furthermore, as a basic safety notice, consider that this manual does not explain how to suspend
loudspeakers. To properly suspend any loudspeaker, a knowledge of structural engineering and
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MB Loudspeakers are convection-cooled systems. Heatsink may become hot while the unit is
operating: use caution when approaching it.
In order to ensure adequate heat disposal the heatsink on the rear panel of the loudspeaker must not be
covered, not be under direct sunlight or spotlights, and adequate space for air ventilation must be
provided.
Do not operate at high volume levels o
s any equipment including signal processing,
a strong source of electromagnetic
radiation (e.g. power amplifiers, light dimmers, RF
For the same reason, please
ensure to keep signal cables as far as possible from mains cables.
Both models MB 12.1 and MB 15.2 can be flown, but never hang more than 3 loudspeakers under one
another. Specific MB suspension hardware must be used. Please contact your dealer and refer to MB
Suspension Hardware Manual for important operative and safety instructions.
MB 8.1 can be flown using the adequate U bracket adaptor and other specific hardware. Never link to
each-other more cabinets in a vertical line for safety reasons. Please contact your dealer and refer to
MB Suspension Hardware Manual for important operative and safety instructions.
For all suitable models, when hanging the loudspeaker, at least 2 hanging points must be used. An
additional and indipendent safety point for each loudspeaker is strongly recommended.
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Mechanical Installation
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