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For speaker cable runs between 25' and 75', #14-gauge, stranded, twisted pair speaker cable is recommended. For speaker cable runs greater than 75', #12-gauge, stranded, twisted pair speaker cable is necessary. For runs exceeding 150', please contact tech support for proper wire gauge or other installation solution using the Atlas Sound AF140 autoformer. 15" models AH5040S, AH9040S, and AH6565S input connections are provided on a convenient recessed terminal block located on the bottom of the loudspeaker. This terminal block includes a clear weather resistant cover which should be re-installed after terminating the speaker cabling to prevent corrosion in outdoor applications. 8" & 12" models include a built-in, high efficiency 60 Watt 70.7V transformer. 7.5, 15, 30, and 60 Watt taps are available on a convenient recessed terminal block located on the bottom of the loudspeaker. A removable jumper and additional pole on the terminal block is included for 8 Ohm direct coupled operation. This terminal block includes a clear weather resistant cover which should be re-installed after terminating the speaker cabling to prevent corrosion in outdoor applications. Allow an adequate service loop for this connection to allow tilt of the loudspeaker. If the speaker is tilted above parallel to the ground, the speaker should be installed angled slightly down for water drainage — in other words, the product should not be installed tilted upwards! ACCESS HOLES FOR SPEAK-ON HOLE FOR STRAIN CONNECTORS RELIEF Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2006 ATLAS SOUND LP Printed in U.S.A. 000606 ATS002386 RevA 6/06 PP INSTALLATION INSTRUCTIONSAH SERIES LOUDSPEAKERS 8", 12", AND 15" INSTALLATION INSTRUCTIONSAH SERIES LOUDSPEAKERS 8", 12", AND 15" AMPLIFIER CONSIDERATIONS Consult your amplifier owner’s manual to confirm power output at the rated impedance. 15" models: AH5040S, AH9040S, and AH6565S and other models used in 8 Ohm confi guration Each model exhibits an 8 Ohm (nominal) impedance. (x2) AH models paralleled will present a 4 Ohm load to the amplifier. (x3) AH models paralleled will present a 2.66 Ohm load to the amplifier. (x4) AH models paralleled will present a 2 Ohm load to the amplifier. ATLAS SOUND speaker system specifications list RMS power handling. As a reference peak power = RMS x 1.414. These ratings should be considered in selecting the best amplifier to power the speaker system. For general use, amplifier output should match or exceed the RMS rated power of the speaker system: (250 Watts for the 15" AH models, 200 Watts for the 12" models and 100 Watts for 8" models). For increased headroom and dynamic reproduction, the amplifier’s output should match or exceed the peak power rating of the speaker system (354 Watts for the 15" AH models, 283 Watts for 12" models and 141 Watts for 8" models). In situations where experienced professionals are operating the speaker system with proper limiting and frequency control devices inserted into the signal path and adjusted properly, amplifier output may meet, but should not exceed 2x the RMS power rating of the speaker system (500 Watts for the 15" AH models, 400 Watts for 12" AH models, and 200 Watts for 8" AH models). Utilizing the Atlas Sound model CP700 power amplifier will allow you to easily match required power ratings for most a...

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