Community ENTASYS, Руководство по установке и эксплуатации

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Community ENTASYS Installation/Operation Manual — Page 47
ARRAY COVERAGE CONFIGURATIONS
For More Information and Applications Assistance
For more information on installing and operating your ENTASYS loudspeaker, please refer to
Community’s web site at www.communitypro.com . For applications support, service or warranty information,
refer to Community’s web site or contact Community at 610-876-3400 or toll-free at 800-523-4934.
S I N G L E F U L L - R A N G E C O L U M N
A single ENTASYS column will provide very good directivity control of a very narrow primary lobe above
approximately 1 kHz. This may provide excellent coverage for many applications. As an example, the coverage
of a single, full-range column is shown in
Figure 26 . This is an SPL map generated by EASE Focus from the
measured data of the individual pass bands of an ENTASYS column. The SPL for the three octave band
centered at 1 kHz ranges from 93-99 dB across the entire 80 foot long listening area.
T W O F U L L - R A N G E C O L U M N S
When additional directivity control is required a second ENTASYS full-range column may be added to an
array. This will yield not only greater directivity control in the low frequency region, but also a more narrow
beamwidth in the high frequency region. This results from the increased line length for all frequencies. For this
configuration the best results will be achieved for most applications when the middle section of the array is
straightened. That is to say, the bottom three mid and high frequency modules of the top column are changed
from the curved to the straight configuration. Similarly, the top three mid and high frequency modules of the
bottom column are changed from the curved to the straight configuration. This combined configuration will result
in a more consistent, gradually curved array.
An SPL map of this type of an array used to cover a steeply raked seating area is shown in Figure 27 .
This shows the radiation for the three octave band centered at 1 kHz. Again, the coverage is very consistent
ranging from 99-103 dB across the entire 83-foot long listening area.
Figure 26: One Full-Range Column (1 kHz)
EASE Focus