Community R2SUBZ Bedienungsanleitung PDF herunterladen (Seite 13)

Community R-Series Application Guide — Page 7

70-Volt, 100-Volt Autoformer

Transformer versions (“T” suffix) include an internal 200W, 70/100V autoformer or transformer. For 70V lines the input taps

are 200W, 100W, 50W and 25W. For 100V lines the taps are 200W, 100W and 50W.

Some models have a multi-wire input cable to select the tap (R.5Coax, R.5SUB, R.5HP, etc.). In this case, termination is usually

best made inside an appropriate electrical box (weatherized as needed) using standard wire splicing methods. Other versions

have a screwdriver-selectable switch accessible through a plug screw (R.25-94TZ & R.5xxTZ) which is accessed by removing

the plug. Rotate the switch to the appropriate stop (“click”) for the desired tap using a flat-head #1 screwdriver. Re-insert

the plug screw after adjusting the tap to maintain weather-resistance. Use caution not to over tighten the plastic plug screw

to avoid stripping the delicate plastic threads. For the R.25-94TZ, re-install the plug so that is flush with the exterior of the

cabinet to avoid undue pressure on the switch mechanism. For additional information, Community’s web site includes

specification sheets and a technical note on the design of 70-volt/100-volt distributed systems.

Custom Colors

All R-Series and WET Series II product may be ordered in custom colors to elegantly match their physical installation

environment. Please contact Community for a quote on cost and lead time.

Using Yoke Brackets

Community provides one yoke-type mounting bracket with every R-Series loudspeaker except the R6-51 and R6-Basshorn. In

most cases, this will be the preferred hardware for mounting these products. The yoke attaches to the sides of the cabinet

with the provided fasteners. It also includes an array of holes along the center strap of the yoke to fasten to structural points

deemed suitable by the installer and/or professional engineer.

Using Safeties

For some applications, the installing contractor or professional engineer might deem necessary (or advisable) that R-Series

cabinets be installed with a secondary means of attachment such as a safety cable. In fact, some local building codes and other

regulations may require safety cables, chains or other secondary supports due to seismic concerns, excessive wind loads, etc.

Be aware that safety attachment points should not be located at insert points on opposite sides of the cabinet in such a

manner that they present a significant force that pulls the insert points away from each other. All safety cables, chains, or other

restraining hardware shall be installed so that the line is taut and positioned to minimize dynamic loading (falling, bouncing,

swinging, etc.) in the event that the loudspeaker’s primary mount fails.

Community does offer in its catalog forged, rated eyebolts intended for rigging loudspeakers. However, these eyebolts are not

rated for outdoor use and the shank is too long for the threaded inserts on R.25 and R.5 loudspeakers. This length limitation

does not apply to the R1 and R2 loudspeakers. Using an eyebolt with too long of a shank will not permit the eyebolt shoulder

to properly seat against the exterior of the cabinet. Installers will need to procure appropriate hardware made from the

appropriate material and shank length to meet the needs of each application.

In some cases, forged, overhead rated shoulder eyebolts may be used as attachment points on the cabinet for safety cables

with some restrictions. The eyebolt must be screwed in and firmly seated (do not over tighten) with the shoulder of the

eyebolt making contact with the rubber washer on the exterior of the cabinet. A rubber washer shall be used between the

eyebolt and the cabinet to maintain weather resistance. Shims may be used between the eyebolt and the rubber washer to

position the eye so that it is in the same plane as the suspension cable or chain. Care must be taken to ensure that the safety

cable will not induce a load off-axis from the eyebolt’s threaded shank.

Hoist Rings provide a method of attachment which has advantages over eyebolts that permit more flexibility in regard to the

pull/load direction of the safety line, though at a higher cost. Hoist rings include a hinged “eye” which allows the load applied

to the cabinet threaded inserts to remain largely in shear, thus preserving the integrity of the insert point. The same

precautions should be taken to properly seat the hoist ring as when seating an eye bolt.

As with all aspects of mounting and rigging loudspeakers, the use of eyebolts, hoist rings, and other safety cabling hardware

should be included in a rigging plan approved by a professional engineer.

IMPORTANT: The mounting bolts that come installed in each R-Series enclosure must either be used to mount the

Accessory Mounting Yoke or they must remain in place. If the rigging fittings are not sealed, air leaks will occur in the

enclosure that will compromise the loudspeaker’s weather-resistance and its low frequency performance.

IMPORTANT: Eyebolts and other mounting hardware for outdoor usage with R-Series loudspeakers must be corrosion

resistant steel properly rated for the load weight.

INSTALLATION

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