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CHAPTER 7
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CHAPTER 7
Horizontal Array
The MAA-UPJ array adapter provides a solid connection
between multiple loudspeakers to form a horizontal array.
The front adjustment slot is used to increase or decrease
the distance between the front of the loudspeakers and
achieve the desired angle between UPJ-1P loudspeakers.
The splay angle can be adjusted continuously from 20°
(minimum) to 80° (maximum).
TIP: To create optimum coverage in a
horizontal array, the splay between UPJ-1P
speakers should be 50° when the horns are in the
80° horizontal by 50° vertical position. Angles of less
than 50° between cabinets can create too much
interaction between loudspeakers, while angles
greater than 50° may create holes in the coverage.
For example, a horizontal array of three UPJ-1Ps
splayed 50° will have an optimal horizontal coverage
of 160° horizontal by 50° vertical.
Pole-Mounting a Horizontal Array
You can pole-mount a horizontal array of two UPJ-1P
loudspeakers using a third party pole-mount adapter (Figure
7.11). Several manufacturers offer pole-mount adapters
that will t the MAA-UPJ array adapter, such as Ultimate
Support System’s (www.ultimatesupport.com) BMB-200K
large tripod mounting bracket.
Figure 7.11. A pole-mounted horizontal array of two UPJ-1Ps (shown
upside down)
!
CAUTION: Do not exceed the load rating of
the pole-mount adapter and tripod. Two UPJ-
1P and array adapters are close to 100 lbs (45.36 kg).
Flying a Horizontal Array
Eyebolts can be also attached to the MEP-UPJ end plate
or to the MAA-UPJ to provide pick-up holes for ying a
horizontal array (Figure 6.12). In addition, the MAA-UPJ’s
rear pick-up holes can be used for additional support or
better control over vertical coverage of the array.
Figure 7.12. Horizontal array of 3 UPJ-1Ps
Vertical Array
The MAA-UPJ array adapter also provides a solid
connection between multiple loudspeakers to form a
vertical loudspeaker array with two or three cabinets. The
front adjustment slot is used to increase or decrease the
distance between the front of the loudspeakers and achieve
the desired angle between the UPJ-1P loudspeakers. The
splay angle can be from 20° (minimum) to 80° (maximum).
In addition, the MAA-UPJ’s rear pickup holes can be used
to provide additional support or better control over the
vertical splay between cabinets.
!
CAUTION: Always use mounting and rigging
hardware that has been rated to meet or
exceed the weight being hung.
Bottom of
loudspeaker
Array adapter
Pole mount
adapter