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Specifications subject to change without notice
© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL3-1482
243
THREE
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
SQUARE PROTECTIVE ENCLOSURES FOR RECESSED
INSTALLATION OF 4" AND 8" LOUDSPEAKERS
191-78
FEATURES
• Versatile Enclosures Mount Over 20 Atlas Sound Grilles
• Available in Various Depths to Meet Performance Requirements
• Choice of Recessed Models With/Without Torsion Spring Receptacles
• Choice of UL Listed and Plenum Rated Models
APPLICATIONS
Choose from various square enclosure models to fulfill different installation and application
requirements. Selection includes protective enclosures for recessed installation of standard
and UL Listed 4" (102mm) and 8" (203mm) loudspeakers. Models are offered in various
depths and for torsion and screw-mount application of grilles. Select models are also offered
in high-performance, extra-depth versions (8" deep) with acoustic fiberglass.
(Refer to SL3-1401 “Enclosures for Extended 8" Loudspeaker Performance”)
GENERAL DESCRIPTION
Atlas Sound square protective enclosures are cost-effective assemblies that mount a wide
variety of Atlas Sound grilles. All models are of welded CRS construction, finished in black
enamel, and are undercoated to eliminate mechanical and acoustical resonances. Units
are also furnished with four compound conduit knockouts. Refer to chart on back for di-
mensions and mounting information.
ENCLOSURES FOR 8" DIA. LOUDSPEAKERS
(T)191-78. Versatile enclosure features an adjustable mounting bracket (
1
⁄16" -
3
⁄4") to
provide installation flexibility in a variety of ceiling types and depths. The 191 Series is
designed for 8" (203mm) dia. loudspeakers and is available with a depth of 4" and choice
of standard screw-mount or torsion spring (T) baffle mounting configurations. Series
includes patch-jute lining and black enamel finish. Extra-depth, 8" deep version is also
available with acoustic fiberglass. Refer to SL3-1401 for details.
193-8/193-8-6. Economical enclosure accommodates 8" (203mm) dia. loudspeakers and
standard screw-mount baffle installation. Models are offered in two standard depths (3
3
⁄4"
and 6"). Design includes slotted mounting holes to accept 180 Series support rails for
efficient installation in suspended tile ceilings. Finished in black enamel.
199-8. Versatile enclosure for 8" (203mm) dia. loudspeakers is equipped with U-Clips in
each corner to facilitate installation of a wide variety of round and square screw-mount
grilles. Finished in black enamel.
ENCLOSURES FOR 4" AND 8" DIAMETER STANDARD AND
UL LISTED LOUDSPEAKERS
198-4 / 198-8 Series. Model Series 198-4 is designed for 4" (102mm) dia. loudspeakers
and will accommodate standard screw-mount baffles. Series 198-8 is for 8" (203mm)
dia. loudspeakers and is available with a depth of 3
3
⁄4" and a choice of standard screw-
mount or torsion spring (T) baffle mounting configurations. Finish is black enamel. Extra-
depth, 8" deep enclosures are also available with acoustic fiberglass. Refer to SL3-1401
for details.
Models U198-4 and U(T)198-8 are UL listed for fire protective signaling application and are
plenum rated under UL file S 1824. They are designed for use with Atlas Sound UL Listed
(Standard 1480) fire-protective 4" signaling loudspeaker Series UDT and 8” loudspeaker
Series UHT/UKT respectively. Refer to SL6-1181 for UL approved loudspeaker and baffle
combinations.
Series:
(T)191, 193, (T)198,
U(T)198, Model 199-8
193-8
198-8