Atlas Sound XLT manual

XLT / XLTE XLT / XLTE XLT / XLTE XLT / XLTE FULL-RANGE SYSTEMS FULL-RANGE SYSTEMS FULL-RANGE SYSTEMS FULL-RANGE SYSTEMS AND AND AND AND SUBWOOFERS SUBWOOFERS SUBWOOFERS SUBWOOFERS Owner’s Manual[...]

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PAGE 1 Com m uni ty X L T / X L TE Series Owner ’s Manua l COMMUNITY PROFESSIONAL LOUDSPE AKERS A TRADITION OF EXCELLEN CE AND INNO VATION FOR OVER 30 YEARS Before 1967, most sound reinforcem ent systems were made up of components de signed for use in movie theate rs. Althoug h these compon ents work ed well i n theaters, the enclosu res were lar[...]

PAGE 2 Com m uni ty X L T / X L TE Series Owner ’s Manua l EC STATEMENT OF CONFORMI TY This document confirms that the range of products of Community Professiona l Loudspeakers be aring the CE label mee t all the re quirements in th e EMC direc tive 89/336/EEC la id down by the Memb er States Council for adjustme nt of legal requirements, further[...]

PAGE 3 Com m uni ty X L T / X L TE Series Owner ’s Manua l TABLE OF CONTENTS CHAPTER PAGE Comm unit y Pr ofessio nal Lou dspeakers............................................................................................ ......................... 1 EC St ateme nt o f Co nform ity .................................................................[...]

PAGE 4 Com m uni ty X L T / X L TE Series Owner ’s Manua l COMMUNITY XLT™ AND XLTE™ SERIES OWNER’S MANUAL 1I N T R O D U C T I O N Welcome! You’ve joine d the group of people tha t have chosen high quality Community loudspeaker systems and components for over 30 ye ars. We’re gratified y ou did and we will do our best to ma ke sure you [...]

PAGE 5 Com m uni ty X L T / X L TE Series Owner ’s Manua l 2 UNPACKING AND INSPECTION The Community XLT and XLTE loudspeakers ar e inherently rugged and are carefully packed in well-designed cartons. It is a good idea to inspect the unit carefully af ter it has been re moved from the packaging, as some times there is hidden damage due to some unf[...]

PAGE 6 Com m uni ty X L T / X L TE Series Owner ’s Manua l NOTES: As shipped from the factor y the PASSIVE/BIAMP switch is set for PAS SIVE mode and the HF Level Switch (not shown) is set in the +4 dB ( maximum) position. Subwoofe r input panel layout is differe nt from that shown.[...]

PAGE 7 Com m uni ty X L T / X L TE Series Owner ’s Manua l NOTE: As shipped from the factory the PAS SIVE/BIAMP switch is set for PAS S IVE mode and the HF Level Switc h (not shown in this drawing) is set in the +4 dB (maximum) position.[...]

PAGE 8 Com m uni ty X L T / X L TE Series Owner ’s Manua l Figure 1: Physical Features NOTE: These are co m posite, gen er alized drawi n g s showing feat ures for bo t h XLT and XLTE pro du cts. Refer to TABLE 1 to deter mine w hich of these features apply to your particular loudspeak er model.[...]

PAGE 9 Com m uni ty X L T / X L TE Series Owner ’s Manua l 3P H Y S I C A L F E A T U R E S (See FIG URE 1 ) 3.1 FEATURES MATRIX TABLE 1 lists various features that vary between XLT and XLTE models. Refer to the Features Descri ptions chart in SECTION 3 .2 for details about each feature. PHYSICAL FEATURES ENCLOSURE MATERIAL FINISH GRILLE STYLE Mo[...]

PAGE 10 Com m uni ty X L T / X L TE Series Owner ’s Manua l OTHER MOUNTIN G POI N TS GRILLE MOUN TING POI NTS The grille is faste ned t o the e nclo sure with 1-1/2 in. / 38 mm #6 Phillips pan-head sc rews. INPUT PANELS INPUT PANEL For connecting th e power amp lifi er to the loud speak er. Al so h as user adju stable co ntro ls and Pow erSense p[...]

PAGE 11 Com m uni ty X L T / X L TE Series Owner ’s Manua l 4 COMMUNITY XLT™ AND XLTE™ SERI E S GE NE RA L DESCRIPTION The XLT loudspeaker systems have features and functions designed primar ily for portable applications. The XLTE systems are suitable for both heavier-duty portable use and for permanent installation. From the smallest to the [...]

PAGE 12 Com m uni ty X L T / X L TE Series Owner ’s Manua l 4.3.4 Ferrofluid Cooling All XLT and XLTE low frequency drivers and the 46 mid frequency dr iver are specifically designed to be Ferrofluid- cooled. Ferrofluid is a visc ous liquid that is attracte d by magnetic fields. The liquid is injected into the voice coil gap during manufacturing [...]

PAGE 13 Com m uni ty X L T / X L TE Series Owner ’s Manua l 4.6.3 Subwoofer Full-Range Output The subwoofers have a FULL-RANGE OUTPUT designed to connect to a full-range loudspeaker. This output functions as a high pass filter. The signa l from the power amplifier connecte d to the subwoofer passes through this output tha t filte rs out th e sub [...]

PAGE 14 Com m uni ty X L T / X L TE Series Owner ’s Manua l 4.8. 1 P e rmanent Mo unting Each enclosure has provisions for permanently installing it. XLT: These models have four 5/16-18 thr e aded 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 de signed to be use[...]

PAGE 15 Com m uni ty X L T / X L TE Series Owner ’s Manua l 4.8.6 41 Positioning and Horn Rotation The 41 can be positioned in severa l ways. When used as a floor monitor either of the two ba cks may be plac ed on the floor to vary the aiming angle . One provides an up-angle of 30 degrees from the floor and the other an up-a ngle of 45 degrees fr[...]

PAGE 16 Com m uni ty X L T / X L TE Series Owner ’s Manua l 5 SETUP AND O PERATIO N A variety o f topics ar e covered in t hese sections concerni ng the use of t he lou dspeakers. Pl ease read them thoroughly to ensure proper set-up, operation, and the best performance , sound quality, and reliability from your loudspeakers. 5.1 CHOOSING A POWER [...]

PAGE 17 Com m uni ty X L T / X L TE Series Owner ’s Manua l MODEL LOUDSP EAKER PROGRAM RATING REC. POWER AMP RANGE POWER AMP LOAD IMPEDANCE 41, 42, 43, a nd 48 500W 420W to 600W 8 Ohm 46 500W 420W to 600W 4 Ohm 47 1000W 830W to 1200W 4 Ohm Table 3: Recommend ed Amplifier Power for Full-Range in PASSIVE Mod e MODEL LF PRO GRAM RATING REC. LF POWER[...]

PAGE 18 Com m uni ty X L T / X L TE Series Owner ’s Manua l specific crossover se ttings for all possible combinations and situa tions. Therefore, if the crossover allows a range of filter adjustme nts, you should experime nt for the best sound. Here are some general recomme ndations: The crossover freq uency can be se t anywhere betwe en 80 Hz a[...]

PAGE 19 Com m uni ty X L T / X L TE Series Owner ’s Manua l FIGURE 3: BIAMP Mode Conf igurations[...]

PAGE 20 Com m uni ty X L T / X L TE Series Owner ’s Manua l 6 ELECTRI CAL INS TALLATI ON 6.1 LOUDSPEAKER CABLE To get the maximum pe rformance from your loudspea ker, copper wire and good qua lity connectors must be used . 6.1 .1 Loudspe a ker Wire G auge The most important fa ctor in selecting loudspe aker cable is its resistance, which is a fun[...]

PAGE 21 Com m uni ty X L T / X L TE Series Owner ’s Manua l 6.2.1 Choosing an Input Jack The 1/4 in. connector has been a dopted for use as a loudspe aker connector primarily because of its low cost and ready availability. It has relatively low curre nt handling and low mech anical conta ct force. This ca n result in a connection failure over tim[...]

PAGE 22 Com m uni ty X L T / X L TE Series Owner ’s Manua l in CHAPTER 11, they indicate the load will be be low 3 ohms (exce pt for the 51 models). Be cause this occurs only over a small ra nge of frequencies and beca use of the nature of a udio signals, a 4 Ohm amplifier should be a ble to drive this load with no problems. However, for models t[...]

PAGE 23 Com m uni ty X L T / X L TE Series Owner ’s Manua l 6.4.2 BIAMP Mode Wiri ng (See FIGURE 5) Installing a nd operating loudspeake rs in BIAMP mode requires putting the slide switch on the input pa nel in the BIAMP (up) position. In this mode the LF and HF connections must be made using either of the Neutrik Speakon jacks. Note that each S [...]

PAGE 24 Com m uni ty X L T / X L TE Series Owner ’s Manua l 7 PHYSICA L I NSTALLA TI ON 7.1 FRONT GRILLE The grille is painted using a powder coating process that bonds the paint to the steel. This pre vents the paint from easily chipping and the resulting matte finish reduces reflection of ambient light sources. If desir ed for cosmetic purposes[...]

PAGE 25 Com m uni ty X L T / X L TE Series Owner ’s Manua l 7.3.1 Model 41 Horn Orientatio n The 41 is shipped from the factory for monitor use meaning that when in a horizontal position its HF patter n is 9 0 degree s horiz ontal b y 40 degree s vertic al. For operating it in a n upright position as a PA loud speake r, rotate the horn so its cov[...]

PAGE 26 Com m uni ty X L T / X L TE Series Owner ’s Manua l quite strong, these points do NOT ha ve a WLL ( Working Load Limit) rating. For this reason alway s take the following precautions: ALWAYS use at lea st two mounting points on opposite sides of the enclosure . ALWAYS pull in a direction para llel to the surface of the enclosure in which [...]

PAGE 27 Com m uni ty X L T / X L TE Series Owner ’s Manua l 7.4.3 Usin g the Community WB1 Moun ting Accessory The WB1 mounting bracket kit consists of two ste el brackets tha t can be attache d to the mounting points for permanent attachment o f the lou dspeaker to architectu ral str uctures. Because of t he ang led sides on the en closur es, th[...]

PAGE 28 Com m uni ty X L T / X L TE Series Owner ’s Manua l 7.5. 1 Using the Community E YBLTKIT The Communit y EYBLTKIT has four drop-forg ed, lo ad-rat ed, 3/8 -16 eyebolt s wi th l ocki ng w ashers. They are desi gned for use in the mounting/rigging points on the XL TE loudspeakers. Refe r to the instructions that are included with the EYBLTKI[...]

PAGE 29 Com m uni ty X L T / X L TE Series Owner ’s Manua l 8 ACOUSTICA L A DJUSTMENTS Once the loudspeaker has been connected according to your configuration, it is rea dy for acoustical a djustments. This is normally a one- time procedure. Once se t, you should not need to cha nge these ad justments. However, when using a system in diffe rent e[...]

PAGE 30 Com m uni ty X L T / X L TE Series Owner ’s Manua l WARNING: Before setting gain structure , disconnect the loudspeake r(s) from the a mplifier(s). 2. The basic pr ocedure is t o use a test sig nal and set th e first piece o f equipment i n the signal chain (u sually t he mixer) so it is just be low its maximum voltage output from its spe[...]

PAGE 31 Com m uni ty X L T / X L TE Series Owner ’s Manua l 8.3 EQUALIZATION Once volume level bal ances are set, you can then equali ze the loudspeaker , if desir ed, using t he loudspeaker ’s HF Level switch and/or a graphic or parame tric equalize r or tone controls on the mixer. Bea r in mind that Community loudspeakers are optimiz ed for g[...]

PAGE 32 Com m uni ty X L T / X L TE Series Owner ’s Manua l 9 OPERATING PRE CAUTIONS The following sections deta il certain operating pre cautions for the loudspea ker that will aid in achieving and maintaining its max imum performance and re liability. They a lso include important information for situations and usage outside the basic se t-up an[...]

PAGE 33 Com m uni ty X L T / X L TE Series Owner ’s Manua l When operating a full- range loudspea ker or subwoofer with a lower powe r amplifier and without any sort of electronic limiting prote ction, ensure that the a mplifier’s limits are not ex ceede d. Most amplifiers have some type of indicator that shows when it is c lipping. Keeping the[...]

PAGE 34 Com m uni ty X L T / X L TE Series Owner ’s Manua l FIGU RE 12 : Sound Expos ure Limit s 9.4 TESTING AND TEST SIGNALS (Refer to CHAPTER 12 for troubleshooting me thods) To test a full-range loudspeaker or subwoofe r or to reproduce test signals or tones through it for othe r purposes, certain pre cautions must be followed to a void damage[...]

PAGE 35 Com m uni ty X L T / X L TE Series Owner ’s Manua l 10 SERVICING THE LOUDSP EAKER 10.1 ACCESSING THE DRIVERS The drivers (LF, MF, or HF) are accessed by removing the grille (See SECTION 7.1.1) . This is done by removing a ll the screws that hold the grille to the enclosure then carefully pulling the grille out of its recess. The grille is[...]

PAGE 36 Com m uni ty X L T / X L TE Series Owner ’s Manua l 11 TECHNIC AL SPECIF ICATIONS (No te: S peci fi ca ti o ns subj ect to change witho ut notice) 11.1 FULL- RANGE MODELS Model: 42 43 46 47 Syste m Type 2-Way Trapezoid al 2-Way Trapezoid al 3-Way Trapezoid al 2-Way Trapezoid al Frequency R esp onse 70 Hz - 18 kHz 50 Hz - 18 kHz 50 Hz - 18[...]

PAGE 37 Com m uni ty X L T / X L TE Series Owner ’s Manua l 11.2 MONITOR SPEAKERS AND SUBWOOFERS 1 Model: 41 48 51 55 Syste m Type 2-Way Monitor wedge and upright PA 2-Way Monitor wedge Trapez oidal Subwoofer Trapezoida l Subwoofer Frequency R esp onse 70 Hz - 18 kHz 50 Hz - 18 kHz 40 Hz - 250 Hz 40 Hz - 150 Hz Sens itivity (1W / 1 m SPL) 97 dB 9[...]

PAGE 38 Com m uni ty X L T / X L TE Series Owner ’s Manua l 12 IN CASE OF DIFFICUL TY Should you have a proble m with your Community loudspeake r, find the symptom and follow the associa ted “What To Do” instructions. Be aware that a pa rticular symptom may ha ve several possible causes. Plea se refer to appropriate sec tions in this manual i[...]

PAGE 39 Com m uni ty X L T / X L TE Series Owner ’s Manua l No bass. (Note: Model 47 has 2 LF dr ivers wir ed in parallel.) Low frequency driver is not functioning. Disconnect the 2 wire s from the amplifier, switch the loudspeaker to BIAMP mode , and, using an ohm meter, me asure the resistance between the wir es. If the meter rea ds an open cir[...]

PAGE 40 Com m uni ty X L T / X L TE Series Owner ’s Manua l No high frequencie s. High frequency driver or crossover is malfunctioning. Listen at low level to the high f requency driver. If some sound is heard from this area and it is not distorted, it is probab ly a crossover problem. If distorted sound or no sound is heard, the driver or crosso[...]

PAGE 41 Com m uni ty X L T / X L TE Series Owner ’s Manua l 13 WARRANTY INFORMATION AND SERVICE Transferab le Limited Warran t y Commu nity produ cts are gu arantee d to be free fro m defec ts in man ufact uring mat erials and fact ory w orkmanship for a spe cified period as noted , by pr od uct g roup, b el ow: CSX-S2 Loudspe aker Systems are co[...]

PAGE 42 Com m uni ty X L T / X L TE Series Owner ’s Manua l Community reserves the right to change the desig n of any product fr om time to time with out notice and wi th no oblig ation to make cor r es ponding ch anges i n p r od ucts prev i ously manuf a ctured. This warranty gives you spec ific legal right s, you m ay also have o ther rights t[...]

PAGE 43 Com m uni ty X L T / X L TE Series Owner ’s Manua l APPENDIX - XLT41E and XLT48E The XLT41E and XLT48E, in a ddition to being part of the XLTE Se ries, are ava ilable to Community Contra ctors and Distributors as part of Community ’s CPL Loudspeake r Series. Their function as part of this series is to provide portable monitor systems c [...]

PAGE 44 Com m uni ty X L T / X L TE Series Owner ’s Manua l INDEX A Abbrev iated Operating Inst ructions ......................................... 11 Acc essories .............................................................................. 15 Acoustic L evel Precaution s ...................................................... 33 Acous tical A d [...]

PAGE 45 Com m uni ty X L T / X L TE Series Owner ’s Manua l Passive Mode Am plifier ........................................................... 17 Passive Mode Config urations ................................................... 18 Passive Mode Wiring ............................................................... 22 Pattern Control Horns ........[...]

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© 1999 Community Li g ht & Sound, Inc . 991015Cm 333 East 5 th Stre et, Che ste r, PA 19013-4511 Phone (610) 876- 3400 Fax (610) 874-0190 http://www.loudspeaker s.net[...]