Operating instructions

CHAPTER 4: QUICKFLY RIGGING
20
1100-LFC STACKED CARDIOID ARRAYS
The 1100-LFC can be configured in cardioid arrays to reduce
output heard behind the loudspeakers. The loudspeaker’s lin-
earity ensures that cardioid patterns behave accurately even
at very high levels. Cardioid arrays are achieved by placing
three units coplanar to each other (in either a groundstacked
or flown array) with one unit facing the opposite direction. The
output of the reversed loudspeaker cancels the output of the
other loudspeakers normally present behind the units, while
also increasing SPL directed forward.
NOTE: 1100-LFCs need not be equipped with
the MRF-1100 rigging kit for groundstacked
cardioid configurations.
NOTE: 1100-LFC cardioid arrays can also be
flown with the MTG-1100 top grid. For more
information, see Chapter 4, “MTG-1100 Top Grid.”
NOTE: To achieve an accurate cardioid pattern,
MAPP Online Pro and the Galileo
®
loudspeaker
management system are required. Use MAPP Online
Pro to calculate the appropriate ratio of forward to rear
facing loudspeakers, as well as the required Galileo
parameter settings for polarity, delay, and gain. An infi-
nite number of cardioid and directional configurations
are possible and can be calculated and predicted with
MAPP Online Pro. For more information, contact
Meyer Sound Technical Support.
MRK-1100 RIGGING KIT
The optional MRK-1100 rigging kit allows the 1100-LFC to be
flown from the MTG-1100 top grid. The rigging kit is available
as a factory-installed option or as a field upgrade and uses
rugged GuideALinks and intuitive quick-release pins to
securely link adjacent loudspeakers in groundstacked and
flown array configurations.
NOTE: For more information on the MRK-1100
rigging kit, including its kit contents, weight,
and installation instructions, refer to the MTG-1100
Assembly Guide (PN 05.220.030.01) available at
www.meyersound.com
.
1100-LFC GuideALinks
When equipped with the MRK-1100 rigging kit, the 1100-LFC
includes four captive GuideALinks that link to adjacent units
in flown and groundstacked arrays. Located at the top cor-
ners of the cabinet, the GuideALinks extend up and into the
link slots of the cabinet above it (or into the link slots of the
MTG-1100 top grid). The links extend and retract with
recessed knobs and are secured with quick-release pins.
Cabinets can be easily linked once they are stacked, since
the GuideALinks extend up and into the link slots of the cab-
inet above. GuideALinks also accommodate reversed units
for cardioid arrays.
1100-LFC Cardioid Array
1100-LFCs with MRK-1100 Rigging Kit, GuideALinks Exposed
Recessed
GuideALink
knob
Quick-
release
pins