AtlasSound.com
2/3
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
©2009
Atlas
Sound
L.P
. All
rights
reserved.
Atlas
Sound
and
Strategy
Series
are
trademarks
of
Atlas
Sound
L.P
.
All
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are
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of
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respective
owners.
A
TS003681
RevA
11/09
Architect & Engineer Specifications
Unit shall be Atlas Sound 4" diameter loudspeaker Model DLS4. Loudspeaker shall be listed by Underwriters Laboratories (UL1480 for General
Signaling and are certified for use in Air Handling Spaces under UL2043) to U.S. and Canadian safety standards. The cone shall be the damped, high-
compliance type.
Unit shall have a smooth extended frequency response over a range of 150Hz – 15kHz and a power rating of not less than 10 Watts program. The
dispersion angle shall be 105° (-6dB, 2kHz octave band). The magnet shall be a 10oz. (283g) ceramic type providing the 1" (25mm) voice coil to
operate in a magnetic field of at least 10,500 gauss. Voice coil impedance shall be 8
Ω
. Sensitivity shall be 92dB (measured at 1W/1M input). Free-air
resonance shall be 125Hz. Transformer primary voltage shall be 70.7V & 100V with a frequency response range of 150Hz – 15kHz (±5dB) and power
taps at 1, 2, 4, & 8 Watts. Insertion loss shall not exceed 1.5dB. The maximum depth of the loudspeaker / transformer assembly shall not exceed
4.25" (108mm).
For mineral tile ceiling installation unit shall be used in conjunction with Atlas Sound tile bridge model FA81-4, and optional conical enclosure model
CS95-8. For drywall ceiling installation unit shall be used in conjunction with Atlas Sound trim ring model FA-TR4, and optional enclosure model
E410NT.
DLS4 Vertical Polars (Normalized to Zero on Axis) (-6 dB)
DLS4 Horizontal Polars (Normalized to Zero on Axis) (-6 dB)