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Community R-Series Application Guide — Page 9

weather-proof design, sealed to the enclosure with silicone caulk or some other suitable weather-tight sealant. Neutrik

models NLT4MP and NLT4FX are good choices for this purpose. When mounting, we recommend installing R-Series

with the gland nut at the bottom wherever possible. Always leave a “drip loop” so water will not migrate toward the

loudspeaker.

• The grille assembly is designed to prevent normal and wind-driven rain from directly entering the mouth of the

loudspeaker. The grille is not designed to withstand such things as being directly sprayed from a hose.

• If you use any hardware in place of the supplied steel screws, bolts, nuts, and washers supplied, it should also be made of

corrosion-resistant, properly-rated steel.

• Always use outdoor-rated cable. Always seal connections in a weather-tight electrical box. Community recommends

periodic inspections of installed rigging hardware to discover and repair any unexpected corrosion or damage.

IMPORTANT:

If the above instructions are not observed, the weather-resistant integrity of an R-Series loudspeaker

can be compromised. This can result in damage to or failure of the hardware or internal components.

NOTICE - STAINLESS STEEL GRILLE AND YOKE CORROSION: R-Series stainless steel yokes and grilles may

show surface corrosion when exposed to marine or other corrosive atmospheres. This corrosion is primarily a

cosmetic problem and does not present an immediate hazard. As an option, Community offers higher grade 316 alloy

stainless steel grilles and yokes for R-Series and WET Series II products. Contact the factory for pricing and delivery

information.

ARTIFICIAL ECHOES

Echoes, Normal and Artificial

Outdoors, it’s common for sound to reflect off a wall or building. If a listener hears this reflection at least 35 to 70

milliseconds (depending on level) after the original sound they will perceive it as an echo.

It’s possible to create an “artificial echo” by separating two loudspeakers far enough apart that a listener hears the second

loudspeaker at least 35 to 70 milliseconds after they hear the first loudspeaker. There’s no reflection here but the effect is the

same - an unwanted echo.

To avoid normal echoes, try to aim loudspeakers away from walls or buildings. To avoid artificial echoes, use a point source

or distributed design as illustrated in this Applications Guide. When it’s necessary to split the loudspeakers, try to avoid

overlapping coverage. That is, to the extent possible, each listener should hear only one loudspeaker.

The Announcer’s Echo

Imagine an outdoor system at a sports facility where the announcer is located 35 to 70 feet (11m-21m) or more from the

loudspeakers. The announcer will hear his or her own voice. Then, about 35 to 70 milliseconds later, the announcer will hear

their own voice again as an echo! Although a broadcast professional or other trained announcer may be able to ignore this

echo, most people find it difficult to speak in this situation. To minimize the problem, close the window in the announcer’s

booth. Alternatively, give the announcer a local monitor loudspeaker or a set of headphones so he can hear his own voice

strongly. This masks the echo and minimizes the distraction.

This same problem occurs for an announcer on the field in a sports facility. Use a monitor loudspeaker or headphones, as

described above, to minimize this problem.

FOR MORE INFORMATION

For more information on installing and operating your R-Series loudspeakers, 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 / 1-800-523-4934.

COMMUNITY’S TECHNICAL APPLICATION GROUP (TAG)

Contact Community’s “TAG Team” (Technical Applications Group) for applications support on systems that use R-Series and

other Community loudspeakers. Our TAG Team can help choose the right product for each system and assist in system

design, loudspeaker layout, acoustic simulation analysis and provide information needed for system commissioning.

Contact the TAG Team at 610-876-3400 / 1-800-523-4934 or email TAGTEAM@communitypro.com.

INSTALLATION

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Community R2SUBZ Manual de usuario Pagina 15

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