0
°
= A1
1.5
°
= B1
3.0
°
= C1
4.5
°
= A3
6.0
°
= B3
7.5
°
= C3
A
B
C
1
2
3
One of the situations you may run into is you want to use a number
of 7
.5
degree modules at the top of a tall vertical array , but the 7
.5
degree tilt provided when two -7 modules are tight packed provides to
much tilt.
Fortunately, the VA101-7's connecting bar is hinged and allows you
to vary the aiming angle from 7.5 degrees down to 0 degrees in half
degree steps.
The assembly procedure is the same as the one outlined on the previ-
ous page. The difference is in the adjustable connecting bar. One end
of it is on a swivel and the bar has more location holes than the normal
connecting bar. See drawing below. This allows you to raise and lower
the rear of the cabinet to change its aiming angle.
1. Decide what aiming angle you need and from the chart on the metal
channel determine which numbered hole location you should use.
2. Remove the quick disconnect pin that is holding the hinged con-
necting bar in position and use the knurled knob to move the bar down
to that location and insert the quick disconnect pin into the bar to lock
it in position.
3. Move the next VA101-7 loudspeaker module into place, remove
its top quick disconnect pin and then lower the upper cabinet(s) into
position. Use the chart on the metal channel to to pick the correct let-
tered insertion Location to use. You may want to physically lift the rear
of the lower cabinet to help with the alignment.
5. Insert the quick disconnect pin and continue adding cabinets.
Point Source Array Modules
Page 8
Hinged connecting bar
VA101-7
metal channel
Assembling Vertical Line Arrays (continued)
