R2-SERIES INSTALLATION / OPERATION MANUAL Weather-Resistant, High-Fidelity, Full-Range Loudspeaker Systems www.communitypro.
EC STATEMENT OF CONFORMITY E C S TAT E M E N T O F C O N F O R M I T Y This document confirms that the range of products of Community Professional Loudspeakers bearing the CE label meets all of the requirements in the EMC directive 89/336/EEC laid down by the Member States Council for adjustment of legal requirements. Furthermore, the products comply with the rules and regulations referring to the electromagnetic compatibility of devices from 30-August-1995.
WELCOME TO COMMUNITY A T R A D I T I O N O F E X C E L L E N C E A N D I N N O VAT I O N Since the founding of our company in 1968, Community has been a constant developer and innovator of loudspeaker technology. Many of our engineering achievements were undertaken to solve problems, when no prior solutions existed. Others resulted from simply seeing a better way to do things.
TABLE OF CONTENTS CONTENTS EC Statement of Conformity ...................................................................................................................... Page 2 Welcome to Community ............................................................................................................................. Page 3 Important Safety Information .....................................................................................................................
IMPORTANT SAFETY INFORMATION I M P O R TA N T S A F E T Y I N F O R M AT I O N Always follow these basic safety precautions when using or installing R-Series loudspeakers and accessories: Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions, particularly those pertaining to rigging, mounting, hanging and electrical connections. Only use accessories that are specified and approved by the manufacturer.
UNPACKING / INTRODUCTION U N PA C K I N G A N D I N S P E C T I O N R-Series loudspeakers are inherently rugged and are carefully packed in sturdy cartons. However, it’s wise to thoroughly inspect each unit after it has been removed from the packaging, as damage could occur during shipping. SHIPPING CLAIMS Please note that once the shipment has left your dealer or the Community factory, the responsibility for damage is always borne by the freight company.
INTRODUCTION / FEATURES DESCRIPTION OF THE R-SERIES All-Weather, All-Purpose Though designed to handle the harshest environmental conditions, R-Series is the perfect choice for many indoor environments. With 22 models to choose from, ranging from short throw with wide coverage angles to ultra-narrow, long throw systems, the task of designing an acoustically and economically effective sound system has never been easier.
R2 QUICK START - FEATURES ENCLOSURE The R2 enclosure is made entirely of hand-laminated fiberglass. An inner low frequency fiberglass horn is bonded to the outer enclosure shell creating an air chamber between the two which forms the woofer enclosure. A separate mid-high frequency fiberglass horn is bolted into the mouth of the bass horn. All bolts and screws for mounting the enclosure and the mid/high horn assembly are stainless steel. All external mounting hardware is stainless steel.
R2 QUICK START - FEATURES P H Y S I C A L F E AT U R E S O F T H E R 2 6 Physical Features (See Figure 1) 1 2 MOUNTING/RIGGING POINTS DESCRIPTION Mounting/Rigging Points Five, one on each side and one on rear. 1/2"-13 captive zinc plated inserts with 1/2"-13 x 1" SS bolts and lock, flat and rubber washers. Used for attaching the R2 Mounting Yoke or customer-supplied mounting system. Other Mounting Points 3 Grille Retainers The grille assembly is retained by 16 #6 machine screws.
COVERAGE PATTERNS R 2 C O V E R A G E PAT T E R N S The coverage pattern for the particular R2 model being used must be understood for proper aiming of the loudspeaker. ASYMMETRICAL COVERAGE PATTERN (R2-474 and R2-694 only) The mid and high frequency horns for the R2-474 and R2-694 are unique asymmetrical designs. Their horizontal dispersion patterns are narrower in the upper part of their vertical coverage pattern and wider in the lower part.
COVERAGE PATTERNS AIMING AXIS (All R2 models except R2-474 and R2-694) In contrast to the R2-474 and R2-694, the other R2 models that have symmetrical coverage patterns where the geometric axis and acoustical axis are the same, the geometric axis is normally used to aim the loudspeaker. NOTE: To maintain weather-resistance, the R2 cabinet should be aimed at least 15 degrees below 0° geometric axis.
POWER AMPLIFICATION C H O O S I N G P O W E R A M P L I F I C AT I O N Selecting a power amplifier for an R2 is straightforward. See page 14 on “High Pass Filter” and page 22 on “Limiting” for additional consideration in selecting an amplifier. POWER RATING The R2s are rated at 400W RMS and 1000W program power. The recommended amplifier is one with a rated RMS output from 800W to 1200W at 4 ohms.
ELECTRICAL INSTALLATION CONNECTING THE LOUDSPEAKER All R2s have approximately 12 ft (3.6m) of 16-2 SJOW-type neoprene jacketed cable attached to the enclosure with a weather-tight gland-nut. This is used for the input signal. This cable may be interconnected to the amplifier output cabling using solder, a terminal block, or wire-nuts. Be sure to provide the connections with a weatherresistant treatment if used outdoors.
SIGNAL PROCESSING H I G H - PA S S ( L O W F R E Q U E N C Y ) F I LT E R The R2s use fully horn-loaded low frequency drivers. The specified low frequency response is 70 Hz. Any attempt to reproduce significant levels below this frequency can result in over-excursion of the low frequency drivers. For this reason an electronic high-pass filter set for 60 to 70 Hz must be used. The slope should be a minimum of 12 dB per octave.
PHYSICAL INSTALLATION GENERAL MOUNTING INSTRUCTIONS The R2s are equipped with five mounting points each consisting of a 1/2-13 threaded inset. Four of the points are located at 90 degree intervals around the circumference of the body of the enclosure. They are located 16.5” (419 mm) from the back of the horn mouth flange. The fifth point is located at the apex of the rear of the enclosure bell.
PHYSICAL INSTALLATION ORIENTING AN R2 An R2 has a definite top and bottom. Two R2 models have asymmetrical coverage patterns (See FIGURES 2 and 5). Because of these designs, incorrect orientation will result in improper sound coverage. For the R2 models with symmetrical coverage patterns, a 180 degree inversion will not affect the coverage. When the top of the enclosure is up, the input cable gland-nut will be down and to your right when looking directly at the front of the loudspeaker.
PHYSICAL INSTALLATION I N S TA L L I N G T H E R 2 M O U N T I N G Y O K E CAUTION: The R2 Mounting Yoke is specifically designed to provide a high degree of safety in R2 installations. It is highly recommended for mounting an R2. Other mounting methods should be carefully considered so that undue strain and possible failure of the mounting points does not occur.
PHYSICAL INSTALLATION FIGURE 4B R2 MOUNTING YOKE PARTS LIST (1) Yoke Bracket (1) Aluminum Contour Strap (1) Aluminum Securing Strap (3) 1/2-13 x 2” (50 mm) stainless steel bolts (1) 1/2-13 stainless steel hex nut (2) 1/2" stainless steel flat washers (1) 1/2" stainless steel lock washer (1) 1/4-20 x 1" (25 mm) stainless steel bolt (2) 1/4-20 stainless steel hex nuts (2) 1/4" stainless steel flat washers (2) 1/4" stainless steel lock washers All other hardware must be supplied by the installer.
PHYSICAL INSTALLATION 3. Position the loudspeaker within the yoke making sure that the large rubber washers sit between the yoke and the enclosure. Be aware this is intentionally made to be a tight fit. Screw the 1/2-13 x 2” (50 mm) bolts, supplied with the yoke, into the mounting holes using the rubber washers, flat washers, and lock washers removed in step two. Tighten only enough so as to allow the yoke to move as needed for the rest of the procedure.
PHYSICAL / MECHANICAL INSTALLATION M A I N TA I N I N G W E AT H E R - R E S I S TA N C E There are several things that must be observed when installing an R2 in order to maintain its weather-resistant integrity for outdoor use. 1. We recommend angling the R-Series loudspeaker at least 15 degrees downward so as to reduce the possibility of rain and other precipitation compromising the performance of the loudspeaker. 2.
MECHANICAL INSTALLATION 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.
OPERATING PRECAUTIONS LIMITING Community recommends use of a limiter to help prevent loudspeaker damage due to sudden transients (dropped microphones, etc.) or amplifier clipping. When used for this purpose, connect the limiter as the last item in the signal chain before the power amplifier (at the input to the power amplifier). Although R2s have builtin DYNA-TECH protection circuitry to help prevent damage to the drivers from excessive power, electronic limiting is strongly recommended.
SYSTEM OPTIMIZATION CHOOSING THE RIGHT LOUDSPEAKERS AND ELECTRONICS Choose R-Series models with high enough maximum SPL to provide the needed SPL at the farthest listener with an appropriate headroom. Typical headroom factors are at least 6 dB for voice paging, at least 10 dB for voice reinforcement and at least 20 dB for music reinforcement. Choose R-Series models with the right frequency response for the application.
R2 SPECIFICATIONS* Technical Specifications Model: R2-52 R2-474 R2-694 R2-77 R2-94 Three-way triaxial, horn-loaded Loudspeaker Type: 70 Hz to 16 kHz Frequency Response: 400W RMS / 1000W Program (40V RMS, 89V momentary peak) Power Handling: Sensitivity 1W/1m ( 80 — 16 kHz ): 107 dB 106 dB 104 dB 104 dB 105 dB ( 250 — 4 kHz ): 109 dB 107 dB 105 dB 105 dB 106 dB 4 ohms 4 ohms 4 ohms 4 ohms 4 ohms 2.7 @ 660 Hz 2.9 @ 260 Hz 2.9 @ 240 Hz 2.9 @ 270 Hz 2.9 @ 260 Hz 600 Hz, 3.
R2 SPECIFICATIONS FIGURE 5: R2 DISPERSION R2 Dimensions R2 Yoke Mounting Bracket (included) Community R2-Series Installation/Operation Manual — Page 25
WIRE GUIDE R2 WIRING MODELS R2-474Z, R2-694Z, R2-77Z AND R2-94Z FIGURE 6: R2 Wiring (Models R2-474Z, R2-694Z, R2-77Z and R2-94Z) (Note: The polarity reversal shown for the MF/HF is intentional.) MODEL R2-52Z WIRING FIGURE 7: R2-52Z Wiring (Note: The polarity reversal shown for the HF is intentional.
IN CASE OF DIFFICULTY SYMPTOM PROBABLE CAUSE WHAT TO DO No Sound. Equipment is turned off. Check and make sure that all equipment in the audio signal path is turned on. The amplifier should not be turned on until all equipment before it is turned on. No Sound. Bad or open connection. Make sure the signal and input wire connections for all connectors in the system and to all terminal screws are properly connected or soldered. Make sure all wire and cables are intact and not severed or damaged.
WARRANTY AND SERVICE SYMPTOM PROBABLE CAUSE WHAT TO DO No volume for the bass frequencies. Low frequency driver or crossover is malfunctioning. Using an ohmmeter, measure the resistance of the input cable (with the amplifier disconnected). If the meter does not read 1.5-3 ohms, both drivers may not be working. Repair or replace as needed. Low or no volume for the mid frequencies.
WARRANTY AND SERVICE O B TA I N I N G WA R R A N T Y S E R V I C E Warranty service may be obtained from the factory, or from an authorized Field Service Station. To obtain factory or field warranty service for products purchased in the United States, return the product for inspection to the address below, freight prepaid, in the original packaging.
THE COMPLETE R-SERIES FAMILY R.25 R.5 Two-way, full-range 100 Hz to 16 kHz LF 1 x 8", HF 1 x ¾" 200W RMS, 500W PGM, 8 ohms Available coverage pattern: 90° x 40° Two-way, full-range 85 Hz to 16 kHz LF 1 x 12", HF 1 x 1" 200W RMS, 500W PGM, 8 ohms Available coverage patterns: 60° x 60°, 90° x 40°, 90° x 90° For portable systems and as short throw fill speakers. For short-to-medium throw applications like gyms and small seating areas. R.5COAX R.
R-SERIES OPERATING DISTANCES For an explanation of recommended effective operating distances, see page 16.
Community Professional Loudspeakers 333 East Fifth Street Chester, PA 19013-4511 USA TEL: 1-(610) 876-3400 FAX: 1-(610) 874-0190 www.communitypro.
