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5.6
Horizontal considerations
Horn-loaded mid frequency system advantage
W8L Series mid frequency elements have been designed with true constant directivity
horns for excellent wide-band horizontal pattern control over a wide coverage angle.
Many line array manufacturers cut their costs by ignoring the superior coverage
pattern control good horn designs can provide. They use direct radiating mid-range
devices instead - incorporating cross-firing techniques to try to emulate coverage
control. These cross- fired midrange drivers can create two acoustical problems. They
do not combine to produce consistent mid frequency coverage and they disturb the HF
mouth shape destroying HF coverage consistency.
Narrow venues
Where line array loudspeakers are to be used in narrow venues we normally
recommend placing them in stereo with left and right paths crossing towards the rear
of the venue.
There is a trade off between stereo coverage and far- field sound pressure level.
Crossing paths at the rear of the venue gives maximum summation for maximum spl at
the rear centre.
DISPLAY™ view showing stereo set-up in narrow venue
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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