18
CHAPTER 7
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CHAPTER 7
Ceiling Mounting a Vertical Array
In the vertical array conguration (Figure 7.13), the top
cabinet is mounted to the ceiling using the MLB-UPJ L-
bracket.
Figure 7.13. Mounting a vertical array of UPJ-1Ps using the MAA-UPJ
and the MLB-UPJ
Flying a Vertical Array
Eyebolts can be also attached to the MAA-UPJ to provide
pick-up holes for ying a vertical array. 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 7.14).
Figure 7.14. Mounting a vertical array of three UPJ-1Ps using the
eyebolts in the top cabinet
TIP: To create optimum coverage in a
vertical array the splay between UPJ-1P
speakers should be 30° when the horns are in the
80° horizontal by 50° vertical position. Angles of
less than 30° between cabinets can create too
much interaction between loudspeakers and angles
greater than 30° can create holes in the coverage.
For example, a vertical array of three UPJ-1Ps
splayed 30° will have a optimal horizontal coverage
of 80° horizontal by 100° vertical.