Atlas IED 191-78, 191-78-8 Data Sheet
191 Series
Square Recessed Baffle For 8" Loudspeakers
Applications
Choose from various square enclosure models to fulfill different
in stallation and ap pli ca tion re quire ments. Mod els are offered in various
depths and for torsion and screw-mount application of grilles. Select
models are also offered in high-per for mance, extra-depth versions (8"
deep) with acoustic fiberglass.
Enclosures with greater cubic capacity extend bass response by
allowing ad di tion al acoustic loading for cost-effective application
wherever enhanced audio quality of music and voice reproduction is
desired. Recessed and surface-mount models offer superior quality
with in stallation flexibility for professional sound system use in
es tablishments of all kinds including lounges, restaurants, trans portation
centers, pro fes sional offices, meeting rooms, retail, and rec rea tion
ar eas. Standard depth enclosures are also available.
191-78
General Description
Atlas Sound square pro tec tive enclosures are cost-ef fec tive assemblies that
mount a wide variety of Atlas Sound grilles. All models are of welded CRS
con struc tion, finished in black enamel, and are undercoated to elim i nate
mechanical and acous ti cal resonances. Units are also furnished with four
com pound conduit knockouts.
Atlas Sound extra-depth enclosures with acoustic fiberglass lin ing
extend quality and enhance performance of 8" diameter com mer cial and
pro fes sional loudspeakers. The in creased vol ume of these enclosures
ex tends the low fre quency re sponse by improving acous tic loading.
Back box inner sur faces are undercoated to prevent metallic reso nance
in the higher end of the frequency spectrum and lined with 1
mm) thick high density fiberglass (11⁄2 lbs. per cu. ft.). Model 191-78-8
includes adjustable mounting bracket for installation flexibility in a variety
of ceiling types and depths.
1
⁄2" (38
191-78-8
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
• Loudspeaker Enclosures with Greater Cubic Capacity Provide
Improved Loading to Enhance High-Quality Sound Systems
• Generous Acoustic Fiberglass Lining Improves Low Frequency
Response to Achieve Fuller, Richer Bass
©2011 Atlas Sound L.P. All rights reserved. Atlas Sound and Strategy Series are trademarks of Atlas Sound L.P. All other trademarks are the property of their respective owners. ATS004096 RevA 7/12
Specifications
191-78
Width 1111⁄16" (297mm) Square
Depth 4" (102mm)
Mounting Bracket Depth 1⁄16" - 3⁄4" (2mm - 19mm)*
Volume .316 ft.
Weight 3.5 lb (1.6 kg)
Mounts Baffle Models 19-8, 164-8
* Adjustable Mounting Flange
3
191-78-8
Width 1111⁄16" (297mm) Square
Depth 8" (203mm)
Mounting Bracket Depth 1⁄16" - 3⁄4" (2mm - 19mm)*
Volume .632 ft.
Weight 6.7 lb (3.04 kg)
Mounts Baffle Models 164-8
* Adjustable Mounting Flange
3
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
1/2
Architect and Engineer Specifications
191-78-8
The metal protective enclosure shall be Atlas Sound Model 191-78-8.
The en clo sure shall be con structed of heavy-gauge cold rolled steel
with interior under coat ing and 11⁄2" (38mm) thick high density fiberglass
(11⁄2 lbs. per ft.3). The unit shall be square and designed for recessed
installations which will be accomplished via __________ (standard
screw, flange mount, welded clip) mount ing. Recessed models shall
have a rust-preventive, textured black coating and the surface-mount
unit finished in textured white. All enclosures shall include four triple
compound conduit knock outs.
191-78
Protective enclosure shall be Atlas Sound Model _____. It shall contain four
compound knockouts and be equipped without torsion spring receptacles.
It shall be of weld ed CRS construction, have a black painted finish, and be
undercoated to elim i nate mechanical and acous ti cal resonances 191-78 is
also patch-jute lined. Unit shall accommodate Atlas Sound baffle Model
_____ and Atlas Sound (8", 4") loudspeaker Model _____.
4" (102mm)
7
⁄32" - 19⁄32"
(5.5mm - 15mm)
1111⁄16" (297mm)
1111⁄16" (297mm)
1111⁄16" (297mm)
1111⁄16" (297mm)
11" (279mm)
7
(5.5mm - 15mm)
191-78 Series
11" (279mm)
⁄32" - 19⁄32"
8" (203mm)
©2011 Atlas Sound L.P. All rights reserved. Atlas Sound and Strategy Series are trademarks of Atlas Sound L.P. All other trademarks are the property of their respective owners. ATS004096 RevA 7/12
191-78-8 Series
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
2/2
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