Atlas Sound XLTE owner manual Physical Installation, 7.1FRONT GRILLE, 7.1.2Custom Grille Cloth

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7 PHYSICAL INSTALLATION

7.1FRONT GRILLE

The grille is painted using a powder coating process that bonds the paint to the steel. This prevents the paint from easily chipping and the resulting matte finish reduces reflection of ambient light sources. If desired for cosmetic purposes, the grille may be painted another color using a non-bridging enamel paint such as Krylon™. In any case, spray painting is recommended.

7.1.1Removing and Re-installing the Grille

To remove the grille, unscrew the small mounting screws pulling the grille away from the face of the enclosure. You may have to hook the grille through one of the perforations with a small tool to aid in pulling it away from its recess. The grille is purposely tight fitting to prevent the metal from resonating so it may require some force to pull it away. Be careful not to catch the carpet pile with the edges on the XLT models. Do not loose any of the grille standsoffs

To reinstall the grille, make sure that the grille is correctly oriented so that holes in the grille line up with all of the standoffs that should be positioned in their recesses. Refasten it to the enclosure using the original screws: 1-1/2 in. / 38 mm #6 sheet- metal, Phillips pan-head. Insure that the screws go through rather than around them. Do not over tighten as you may strip the screw hole in the front enclosure front panel.

CAUTION:

The grille has sharp points along its edge so use care when handling the grille edges to avoid injury. The grille is shear-cut to size and because of the arrangement of the perforations, it is impossible to avoid cutting through some of the holes. This makes sharp points out of the land area between the holes.

7.1.2Custom Grille Cloth

Because of the way the grille is retained, putting a grille cloth over the grille is somewhat difficult as it could cover access to the retainer screws. The most feasible method is to screw directly through the grille cloth after it is installed on the grille.

If you do choose to use a custom grille cloth for cosmetic purposes, high frequency losses can be avoided by using only a synthetic (inorganic) material. It must have at least a 50% open weave. A simple test is to hold the cloth about 4 inches (10 cm) in front of your eyes. If you can easily identify objects 3 feet (1 m) or more away when looking through the cloth, it is probably OK to use. Because of the tight fit of the grille, use only a thin material.

7.2ENCLOSURE FINISHES

XLT: The XLT enclosures are finished with dense-pile black carpet. It is held in place by an industrial-strength adhesive backing. It is designed to withstand the typical handling associated with portable applications

XLTE: The XLTE enclosures are finished with a water-based paint. This paint is quite durable. However, should you need to touch up scratches, any water-based paint may be applied. Spray painting is recommended.

7.3MODEL 41, 42, AND 46 ORIENTATION

The nominal coverage patterns for these models is 90 degrees by 40 degrees. The HF horns (MF/HF horn assembly for the 46) can be rotated by 90 degrees to change the coverage pattern in relation to the position of the enclosure. To rotate the horn, lay the loudspeaker on its back, remove the grille, and unscrew the screws holding the horn. Carefully lift it out the horn enough to rotate it and then reseat it in the baffle cutout. Be sure to replace all screws.

PAGE 24 Community XLT / XLTE Series Owner’s Manual

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Contents XLT / XLTE FULL-RANGESYSTEMS AND SUBWOOFERSPage COMMUNITY PROFESSIONAL LOUDSPEAKERS DIN EN EC STATEMENT OF CONFORMITYDIN EN 55013 08-1991 DIN EN Community Light & Sound, Inc. 333 East 5th StreetCHAPTER TABLE OF CONTENTSDIAGRAMS and TABLES PAGE1.2MODEL NUMBER USAGE IN THIS MANUAL 1.3IMPORTANT SAFETY INFORMATION1 INTRODUCTION 2 UNPACKING AND INSPECTION Page Page Figure 1 Physical Features Table 1 Physical Features Matrix 3 PHYSICAL FEATURES See FIGURE3.1FEATURES MATRIX 3.2FEATURES DESCRIPTIONSFootnotes for Physical Features Phillips pan-head screws4.3.1High Frequency Driver 4.1ABBREVIATED OPERATING INSTRUCTIONSTable 2 Product Listing 4.3DRIVERS 4.3.2Mid Frequency Driver 46 models only4.3.4Ferrofluid Cooling 4.6.1PASSIVE / BIAMP Switch4.6.2HF-LevelSwitch 4.4PATTERN CONTROL HORNS4.7POWER HANDLING 4.6.4PowerSense DDP Circuit4.6.5PowerSense Indicators 4.6.3Subwoofer Full-RangeOutput4.8.3Feet XLTE only 4.8.1Permanent Mounting4.8.2Corner Protectors and Stacking XLT only 4.8.4Carrying Handles4.9.23rd Party Accessories 4.9OPTIONAL ACCESSORIES4.9.1Community Accessories 4.8.641 Positioning and Horn Rotation5.1.2Power Amplifier Load Impedance 5 SETUP AND OPERATION5.1CHOOSING A POWER AMPLIFIER Table 5 Recommended Amplifier Power for Subwoofer FIGURE 2 PASSIVE Mode Configurations FIGURE 3 BIAMP Mode Configurations Table 6 Loudspeaker Wire Gauge Selection 6 ELECTRICAL INSTALLATION6.1.1Loudspeaker Wire Gauge 6.1LOUDSPEAKER CABLE6.3.2Load Impedance When Paralleling Loudspeakers 6.2.2Internal Input Jack Wiring6.3.1Parallel Connector Wiring 6.2.1Choosing an Input JackFIGURE 4: Wiring for PASSIVE Mode Full-Range 6.4CONNECTING THE LOUDSPEAKERS6.4.1PASSIVE Mode Wiring See FIGURE FIGURE 6 Wiring for Subwoofer 6.4.2BIAMP Mode Wiring See FIGUREFIGURE 5 Wiring for BIAMP Mode Full-Range 6.4.3Subwoofers See FIGURE7.1FRONT GRILLE 7 PHYSICAL INSTALLATION7.1.1Removing and Re-installingthe Grille 7.1.2Custom Grille Cloth7.4MOUNTING AND RIGGING 7.3.1Model 41 Horn Orientation7.3.2Model 42 and IMPORTANT NOTE Mounting/Rigging Point HolesFIGURE 8 XLT Mounting Points 7.4.2Using the Community CSSUPKIT Suspension KitFIGURE 7 Mounting Point Detail - Pull Direction DANGERDANGER See FIGURE 7.4.3Using the Community WB1 Mounting Accessory7.4.4Stand Bracket Inserts 46 and 48 only FIGURE 9 XLTE Mounting / Rigging Points7.6STACKING ENCLOSURES 7.5.1Using the Community EYBLTKITFIGURE 10 XLTE Mounting / Rigging Point Detail 8.2FINAL ADJUSTMENTS 8 ACOUSTICAL ADJUSTMENTS8.1INITIAL TESTING 8.2.1Electronic Gain Structure8.2.3Volume Level Balancing 8.2.2Residual Noise8.3.2Equalization Tips 8.3.1HF-LevelSwitch8.3EQUALIZATION 8.4FINAL RESULTS9.1.1Operating Modes and PowerSense DDP 9 OPERATING PRECAUTIONS9.1POWERSENSE DDP 9.1.2PowerSense DDP Circuit Operation9.3ACOUSTIC VOLUME LEVEL PRECAUTIONS FIGURE 11 Amplifier Clipping9.4TESTING AND TEST SIGNALS FIGURE 12 Sound Exposure Limits10.1.1LF Drivers 10.1ACCESSING THE DRIVERS10 SERVICING THE LOUDSPEAKER 10.1.2MF and HF Drivers11 TECHNICAL SPECIFICATIONS 11.1FULL-RANGEMODELS11.2MONITOR SPEAKERS AND SUBWOOFERS 12 IN CASE OF DIFFICULTY No bass No high frequencies 13WARRANTY INFORMATION AND SERVICE Transferable Limited Warranty9907007F APPENDIX - XLT41E and XLT48E Table 8 Additional Model SpecificationsC. Specifications A. XLT41E and XLT48E Additional ModelsINDEX Page Page Page Page Page 1999 Community Light & Sound, Inc. 991015Cm 333 East 5th Street, Chester, PAPhone 610 876-3400Fax