-7-
For larger center clusters, consider the D or E series of arrays. For three- and four-cluster
systems as described above (see Figure 3), the G series of arrays are particularly useful given
their low profile and excellent polar characteristics. The stacked LF drivers of these arrays
combine to increase LF power and directivity, improving gain before feedback. They are also
very simple to rig.
Combination Speech & Music Systems
A majority of sound reinforcement projects fall into this category. Here, all the elements
associated with a successful speech system (evenness of coverage, consistent pattern
control, and good intelligibility) need to be combined with a system that goes lower in
frequency and gets louder. These systems require a strong proscenium system to
provide source localization and solid low-frequency support.
The preferred configuration of these systems is often an exploded arrangement, although
other building constraints or preferences may dictate otherwise (see Figures 4 & 5).
Clusters must provide good directivity to lower frequencies in order to provide evenness
of coverage and improved system gain before feedback.
Figure 3: Array G4 (p. 34) used as an exploded
cluster in a fan-shaped room
