Specifications

TI 323 (6.0E)
34 - 36
9.10. Example 10:
This is an example of a system for reinforcing an
outdoor stadium show with an audience of
approximately 60,000. The 7 x C3s in columns 3 and
5 set at –27° and +3° as shown in the diagram
below, deliver the main energy into the mid and far
field. The inner column 6 serves the triangle in front of
the stage up to a distance of approximately 40
metres (131 ft). The 2 x 6-deep columns 1 and 2
cover the side field, using close coupled C4-TOPs at
the top to increase the SPL in the upper listening
areas. Exact horizontal aiming angles of the columns
depends on the width of the stage and consequent
distance between the left and right clusters. The
arrangement of the C4-SUBs couple to supply
sufficient headroom while optimizing low end
directivity. Ground stacked TOP cabinets produce
near field coverage and can be arranged in various
combinations with C4-SUBs and B2-SUBs. For this
example 12 x B2-SUBs per side should produce
sufficient low frequency energy.
In terms of energy this set up could throw farther than
100 metres (328 ft) , however thermal, humidity and
wind effects can easily ruin the acoustic result at
greater distances. Delay systems can be deployed to
minimize these disruptive effects over greater
distances.