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Specifications subject to change without notice
© 2007 Atlas Sound Printed in U.S.A. 000202 SL2-1421
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
AtlasSound.com
ARCHITECT AND ENGINEER SPECIFICATIONS
Explosion proof loudspeaker shall be UL Listed for use in specified
hazardous locations and/or combustible atmospheres as classified by
the National Electric Code.
UL approved compression driver for 60 Watt distributed application
shall be Atlas Sound Model HLE-1T or HLE-3T with internally mounted
60-watt transformer Model T-18. Transformer shall have primary
impedance taps at 2000, 1000, 500, 250, 125 and 85 with a 45 Ohm
tap for 45 Ohm line use only. Corresponding power taps for 70.7V line
use shall be 2.5, 5, 10, 20, 40 and 60. Secondary impedance shall be
4, 8 and 16 Ohms. For voice-coil circuit applications, UL Listed 60 Watt
Model HLE-1, or HLE-3 with 16 Ohm voice coil shall be specified.
UL approved compression driver for 30-watt distributed application
shall be Atlas Sound Model MLE-1T or MLE-3T with internally mounted
30 Watt transformer Model T-20. Transformer shall have primary
impedance taps at 2500, 1300, 666, 333, 167, 89 and 45 Ohms.
Corresponding power taps for 70.7V line use shall be 1.8, 3.7, 7.5, 15,
and 30. Power taps for 25V line shall be 1.89, 3.7, 7, and 15. Secondary
impedance shall be 8 Ohms. For voice-coil circuit applications, UL
Listed 30 Watt Model MLE-1, or MLE-3 with 8 Ohm voice coil shall be
specified.
Driver and transformer, where applicable, shall be mounted within a
heavy, cast aluminum housing. Voice coils shall be field-replaceable.
Projector horn shall be a reflex type with polycarbonate re-entrant
section. It shall be Atlas Sound Model HLE/MLE-30 for 120
˚
x 60
˚
sound
dispersion or HLE/MLE-32 for 95
˚
sound coverage. Driver and horn
assembly shall have a frequency response of _______ with sensitivity
of _______(measured at 10 dynes / cm
2
). Sound pressure level shall
be a minimum of ________(measured at 1W/1M).