PreSonus StudioLive 328AI - Manual (Page 36)

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4 System Configuration
4.3 Rigging and Safety
StudioLive ™ AI-Series Loudspeaker
Owner’s Manual
4.3.4 Precautions
StudioLive AI-series loudspeakers, like all electrical devices, must be protected
from liquids or excessive moisture. They are not designed for outdoor use during
inclement weather. If you are using your StudioLive AI-series loudspeakers
outside when rain or other wet weather occurs, immediately power down
your loudspeakers and protect the cabinets with waterproof coverings.
The amplifiers in StudioLive AI-series loudspeakers are convection cooled
via the rear-panel heatsink. Free airflow must be maintained around and
behind the heatsink, with a minimum clearance of six inches behind
the cabinet. Make certain the heatsink is kept clear of any adjacent
materials, such as stage curtains, that could impede airflow.