Atlas Sound XLTE 4.8.1Permanent Mounting, 4.8.2Corner Protectors and Stacking XLT only, Danger

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4.8.1Permanent Mounting

Each enclosure has provisions for permanently installing it.

XLT: These models have four 5/16-18 threaded T-nuts - one each in the top, sides, and bottom. The XLT48 has two mounting points - one on each of the two sides. These points are designed to be used with Community’s optional CSSUPKIT or WB1 mounting kits for permanent installations. The XLT41E has no provisions for permanent mounting or rigging.

XLTE: These models have six engineered, load-rated 3/8-16 mounting rigging points - three each on the top and bottom of the enclosures. The XLT48E has the same provision as the XLT48 - two mounting points - one on each of the two sides. The XLT41E has no provision for permanent mounting or rigging

4.8.2Corner Protectors and Stacking (XLT only)

The XLT enclosures have eight corner protectors on the corners of the enclosures. They serve as feet for the enclosure as well as providing protection from physical damage. They are designed with ridges in them that mesh with the corners of other XLT enclosures with the same footprint so that they can be easily stacked.

4.8.3Feet (XLTE only)

Each XLTE enclosure, except the XLT41E, comes with four heavy-duty rubber feet attached into slight recesses in the enclosure. The XLT55E also has recesses in the top of its enclosure that mate with the feet of the XLTE full-range enclosures when stacking.

The feet on the XLT41E are supplied unattached. They can be attached to either of the rear surfaces or the bottom of the enclosure depending upon the application. Pilot holes for locating and attaching the feet are provided on the rear surfaces, for monitor applications, and on the bottom, for upright PA use.

WARNING:

Refer to SECTION 7.6 for information on stacking enclosures.

4.8.4Carrying Handles

Each enclosure has recessed bar handles mounted near the center of gravity for easier lifting. The handles are an all- steel construction to help prevent breakage. The XLT41E has a steel spring handle.

DANGER:

Do not use the handles for mounting or hanging (suspending) the loudspeaker. The handles are not designed for nor load rated for these purposes.

4.8.5Stand / Pole Mounting

The 41, 42, and 43 models have a 1-3/8 in. / 51 mm socket in the bottom that mates to appropriate Ultimate Support or similar stands or poles. The 46 and 48 models have 5/16-18 T-nuts for attaching an external stand / pole mount adapter. The 51 has a pole socket in its top for pole mounting a full-range loudspeaker above it such as an XLT41, XLT41E or XLT42E. The Community SB5 pole accessory can be used for this purpose. (See SECTION 4.9.1)

PAGE 14 Community XLT / XLTE Series Owner’s Manual

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Contents XLT / XLTE FULL-RANGESYSTEMS AND SUBWOOFERSPage COMMUNITY PROFESSIONAL LOUDSPEAKERS EC STATEMENT OF CONFORMITY DIN EN 55013 08-1991 DIN ENDIN EN Community Light & Sound, Inc. 333 East 5th StreetTABLE OF CONTENTS DIAGRAMS and TABLESCHAPTER PAGE1 INTRODUCTION 1.3IMPORTANT SAFETY INFORMATION1.2MODEL NUMBER USAGE IN THIS MANUAL 2 UNPACKING AND INSPECTION Page Page Figure 1 Physical Features 3 PHYSICAL FEATURES See FIGURE 3.1FEATURES MATRIXTable 1 Physical Features Matrix 3.2FEATURES DESCRIPTIONSFootnotes for Physical Features Phillips pan-head screws4.1ABBREVIATED OPERATING INSTRUCTIONS Table 2 Product Listing 4.3DRIVERS4.3.1High Frequency Driver 4.3.2Mid Frequency Driver 46 models only4.6.1PASSIVE / BIAMP Switch 4.6.2HF-LevelSwitch4.3.4Ferrofluid Cooling 4.4PATTERN CONTROL HORNS4.6.4PowerSense DDP Circuit 4.6.5PowerSense Indicators4.7POWER HANDLING 4.6.3Subwoofer Full-RangeOutput4.8.1Permanent Mounting 4.8.2Corner Protectors and Stacking XLT only4.8.3Feet XLTE only 4.8.4Carrying Handles4.9OPTIONAL ACCESSORIES 4.9.1Community Accessories4.9.23rd Party Accessories 4.8.641 Positioning and Horn Rotation5.1CHOOSING A POWER AMPLIFIER 5 SETUP AND OPERATION5.1.2Power Amplifier Load Impedance Table 5 Recommended Amplifier Power for Subwoofer FIGURE 2 PASSIVE Mode Configurations FIGURE 3 BIAMP Mode Configurations 6 ELECTRICAL INSTALLATION 6.1.1Loudspeaker Wire GaugeTable 6 Loudspeaker Wire Gauge Selection 6.1LOUDSPEAKER CABLE6.2.2Internal Input Jack Wiring 6.3.1Parallel Connector Wiring6.3.2Load Impedance When Paralleling Loudspeakers 6.2.1Choosing an Input Jack6.4.1PASSIVE Mode Wiring See FIGURE 6.4CONNECTING THE LOUDSPEAKERSFIGURE 4: Wiring for PASSIVE Mode Full-Range 6.4.2BIAMP Mode Wiring See FIGURE FIGURE 5 Wiring for BIAMP Mode Full-RangeFIGURE 6 Wiring for Subwoofer 6.4.3Subwoofers See FIGURE7 PHYSICAL INSTALLATION 7.1.1Removing and Re-installingthe Grille7.1FRONT GRILLE 7.1.2Custom Grille Cloth7.3.1Model 41 Horn Orientation 7.3.2Model 42 and7.4MOUNTING AND RIGGING IMPORTANT NOTE Mounting/Rigging Point Holes7.4.2Using the Community CSSUPKIT Suspension Kit FIGURE 7 Mounting Point Detail - Pull DirectionFIGURE 8 XLT Mounting Points DANGER7.4.3Using the Community WB1 Mounting Accessory 7.4.4Stand Bracket Inserts 46 and 48 onlyDANGER See FIGURE FIGURE 9 XLTE Mounting / Rigging PointsFIGURE 10 XLTE Mounting / Rigging Point Detail 7.5.1Using the Community EYBLTKIT7.6STACKING ENCLOSURES 8 ACOUSTICAL ADJUSTMENTS 8.1INITIAL TESTING8.2FINAL ADJUSTMENTS 8.2.1Electronic Gain Structure8.2.3Volume Level Balancing 8.2.2Residual Noise8.3.1HF-LevelSwitch 8.3EQUALIZATION8.3.2Equalization Tips 8.4FINAL RESULTS9 OPERATING PRECAUTIONS 9.1POWERSENSE DDP9.1.1Operating Modes and PowerSense DDP 9.1.2PowerSense DDP Circuit Operation9.3ACOUSTIC VOLUME LEVEL PRECAUTIONS FIGURE 11 Amplifier Clipping9.4TESTING AND TEST SIGNALS FIGURE 12 Sound Exposure Limits10.1ACCESSING THE DRIVERS 10 SERVICING THE LOUDSPEAKER10.1.1LF Drivers 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 Table 8 Additional Model Specifications C. SpecificationsAPPENDIX - XLT41E and XLT48E A. XLT41E and XLT48E Additional ModelsINDEX Page Page Page Page Page Phone 610 876-3400Fax 333 East 5th Street, Chester, PA1999 Community Light & Sound, Inc. 991015Cm