Atlas Sound XLTE owner manual 4.1ABBREVIATED OPERATING INSTRUCTIONS, Product Listing 4.3DRIVERS

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4 COMMUNITY XLT™ AND XLTE™ SERIES GENERAL DESCRIPTION

The XLT loudspeaker systems have features and functions designed primarily for portable applications. The XLTE systems are suitable for both heavier-duty portable use and for permanent installation. From the smallest to the largest model, these loudspeakers represent Community’s commitment to meeting the audio requirements for sound reinforcement with performance, quality, and reliability at affordable prices.

4.1ABBREVIATED OPERATING INSTRUCTIONS

This General Description Chapter about the features and functions can serve as abbreviated operating instructions on how to use your new product. More detailed information can be found in the chapters that follow.

4.2MODELS (See Appendix for details about XLT41E and XLT48E model variations)

The full-range loudspeakers reproduce all but the very deepest bass frequencies. The HF drivers (and MF driver in the 46) are horn-loaded for maximum efficiency and for directional control of the sound. For additional bass output at the extreme low end of the audio frequency range, model 51 or 55 subwoofers can be used with the full-range loudspeakers to produce added depth and impact. The 51 and 55 subwoofers are ported (bass reflex) designs, engineered to match the enclosure sizes and acoustic performance of the full-range loudspeakers.

MODEL

TYPE

LOW FREQUENCY

MID FREQUENCY

HIGH FREQUENCY 2

41

2-way floor monitor / PA

(1) 12 in. / 305 mm

N/A

(1) 1 in. / 25 mm Titanium

42 1

2-way full-range

(1) 12 in. / 305 mm

N/A

(1) 1 in. / 25 mm Titanium

43

2-way full-range

(1) 15 in. / 381 mm

N/A

(1) 1 in. / 25 mm Titanium

46

3-way full-range

(1) 15 in. / 381 mm

(1) 6.5 in. / 165 mm)

(1) 1 in. / 25 mm Titanium

47

2-way full-range

(2) 15 in. / 381 mm

N/A

(1) 1 in. / 25 mm Titanium

48

2-way floor monitor

(1) 15 in. / 381 mm

N/A

(1) 1 in. / 25 mm Titanium

51

Ported subwoofer

(1) 15 in. / 381 mm

N/A

N/A

55

Ported subwoofer

(2) 15 in. / 381 mm

N/A

N/A

1This model is only part of the XLTE Series.

22 in. / 51 mm diameter diaphragm , 1 in. / 25 mm exit driver on a 1 in. / 25 mm entrance horn

Table 2: Product Listing

4.3DRIVERS

All systems use proprietary drivers built to precise Community designs and specifications using the latest in materials technology and design philosophy.

4.3.1High Frequency Driver

The high frequency driver for all full-range systems is a 1 in. / 25 mm exit compression driver with a 2 in. / 51 mm diameter titanium diaphragm. It provides high power handling capabilities while retaining the small diaphragm area necessary to reproduce the small wavelengths of the highest audible frequencies.

4.3.2Mid Frequency Driver (46 models only)

The midrange driver in the 46 models is a Ferrofluid cooled 6.5 in. / 165 mm horn loaded cone driver. Its long excursion, low compression ratio design results in exceptionally low distortion. The large magnetic structure provides high sensitivity along with high power handling that extends well below its 500 Hz crossover point.

4.3.3Low Frequency Drivers

The low frequency drivers in all models are high sensitivity cone-type transducers. Their characteristics vary depending on the particular loudspeaker model. Large magnetic structures, edge-wound voice coils, and high stiffness-to-mass cones enhance power handling and clean reproduction. The enclosures are ported designs (also called bass-reflex or vented) to improve low frequency efficiency and extend the low frequency response.

PAGE 11 Community XLT / XLTE Series Owner’s Manual

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Contents FULL-RANGESYSTEMS AND SUBWOOFERS XLT / XLTEPage COMMUNITY PROFESSIONAL LOUDSPEAKERS DIN EN 55013 08-1991 DIN EN EC STATEMENT OF CONFORMITYDIN EN Community Light & Sound, Inc. 333 East 5th StreetDIAGRAMS and TABLES TABLE OF CONTENTSCHAPTER PAGE1 INTRODUCTION 1.3IMPORTANT SAFETY INFORMATION1.2MODEL NUMBER USAGE IN THIS MANUAL 2 UNPACKING AND INSPECTION Page Page Figure 1 Physical Features 3.1FEATURES MATRIX 3 PHYSICAL FEATURES See FIGURETable 1 Physical Features Matrix 3.2FEATURES DESCRIPTIONSPhillips pan-head screws Footnotes for Physical FeaturesTable 2 Product Listing 4.3DRIVERS 4.1ABBREVIATED OPERATING INSTRUCTIONS4.3.1High Frequency Driver 4.3.2Mid Frequency Driver 46 models only4.6.2HF-LevelSwitch 4.6.1PASSIVE / BIAMP Switch4.3.4Ferrofluid Cooling 4.4PATTERN CONTROL HORNS4.6.5PowerSense Indicators 4.6.4PowerSense DDP Circuit4.7POWER HANDLING 4.6.3Subwoofer Full-RangeOutput4.8.2Corner Protectors and Stacking XLT only 4.8.1Permanent Mounting4.8.3Feet XLTE only 4.8.4Carrying Handles4.9.1Community Accessories 4.9OPTIONAL 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 6.1.1Loudspeaker Wire Gauge 6 ELECTRICAL INSTALLATIONTable 6 Loudspeaker Wire Gauge Selection 6.1LOUDSPEAKER CABLE6.3.1Parallel Connector Wiring 6.2.2Internal Input Jack 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 FIGURE 5 Wiring for BIAMP Mode Full-Range 6.4.2BIAMP Mode Wiring See FIGUREFIGURE 6 Wiring for Subwoofer 6.4.3Subwoofers See FIGURE7.1.1Removing and Re-installingthe Grille 7 PHYSICAL INSTALLATION7.1FRONT GRILLE 7.1.2Custom Grille Cloth7.3.2Model 42 and 7.3.1Model 41 Horn Orientation7.4MOUNTING AND RIGGING IMPORTANT NOTE Mounting/Rigging Point HolesFIGURE 7 Mounting Point Detail - Pull Direction 7.4.2Using the Community CSSUPKIT Suspension KitFIGURE 8 XLT Mounting Points DANGER7.4.4Stand Bracket Inserts 46 and 48 only 7.4.3Using the Community WB1 Mounting AccessoryDANGER See FIGURE FIGURE 9 XLTE Mounting / Rigging PointsFIGURE 10 XLTE Mounting / Rigging Point Detail 7.5.1Using the Community EYBLTKIT7.6STACKING ENCLOSURES 8.1INITIAL TESTING 8 ACOUSTICAL ADJUSTMENTS8.2FINAL ADJUSTMENTS 8.2.1Electronic Gain Structure8.2.2Residual Noise 8.2.3Volume Level Balancing8.3EQUALIZATION 8.3.1HF-LevelSwitch8.3.2Equalization Tips 8.4FINAL RESULTS9.1POWERSENSE DDP 9 OPERATING PRECAUTIONS9.1.1Operating Modes and PowerSense DDP 9.1.2PowerSense DDP Circuit OperationFIGURE 11 Amplifier Clipping 9.3ACOUSTIC VOLUME LEVEL PRECAUTIONSFIGURE 12 Sound Exposure Limits 9.4TESTING AND TEST SIGNALS10 SERVICING THE LOUDSPEAKER 10.1ACCESSING THE DRIVERS10.1.1LF Drivers 10.1.2MF and HF Drivers11.1FULL-RANGEMODELS 11 TECHNICAL SPECIFICATIONS11.2MONITOR SPEAKERS AND SUBWOOFERS 12 IN CASE OF DIFFICULTY No bass No high frequencies Transferable Limited Warranty 13WARRANTY INFORMATION AND SERVICE9907007F C. Specifications Table 8 Additional Model 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