LD Systems LDMON 81AG² - Manual (Page 10)

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SETUP, CONNECTION, AND STARTUP:
SETUP
The LD MON81AG², LD MON101AG² and LD MON121AG² powered stage monitors are used to monitor individual
channels or the main mix onstage outside of the zone covered by the PA system. For operation, the stage monitor
must be placed on the rubber feet and the rear panel with the integral amplifier must be positioned at a distance
of at least 50 cm from walls, racks, etc. for reliable avoidance of overheating.
Please make certain that the cables are connected correctly both for the power supply and for connection with
the source equipment being used (mixer, etc.). Use only undamaged cables and completely unwound cable
drums and run the cables so that tripping hazards are avoided.
The unit should never be positioned directly at an edge (e. g., the edge of the stage). It is advisable to always turn
the powered monitor on first and off last in order to avoid loud popping sounds when the connected devices are
turned on and off.
OPERATION
The control panel has both a line input with an XLR / 6.3 mm jack socket (combo) for balanced and unbalanced
signal cables and a balanced XLR line output for looping through the input signal, for example, to an additional
powered stage monitor of the same type. The basic volume is adjusted on the powered stage monitor using the
volume control (MAIN LEVEL); the ultimate adjustment of the level is then carried out via the source equipment.
POSITIONING
To minimize the risk of acoustical feedback, when using stage monitors as vocal monitors, make certain to vary
the position of the monitor relative to the microphone depending on the directional pattern of the microphone
used.
When using a microphone with a cardioid pattern, the monitor should be positioned directly behind the micro-
phone, i.e., 180° relative to the microphone (Fig. 1). When using a microphone with a supercardioid pattern, it is
advisable to position the monitor at approx. 120° relative to the microphone (Fig. 2).