M812-S2T7-BX-RS
Channel Mounting Sound Masking 8" Loudspeaker Assembly
Features
- Completely Assembled and Wired for Easy Installation
- Specifically Designed for Installation in Suspended Tile Ceiling Systems
- Finished in Black Epoxy
Applications
Open office plan designs are becoming increasingly popular. To maintain a successful
acoustic environment in such areas, it is important to take into account the interacting
variables which influence office privacy. All components must be coordinated:
ceiling/wall treatments, furniture/ furnishings, and HVAC systems. In most cases, a
sound masking system will also be required to achieve adequate speech privacy at
normal voice levels. Masking systems aid in creating continuous background coverage
by adding low level sound to obscure ambient noise. The intelligibility of surrounding
speech is reduced, as well as the distraction from daily office activity noise.
The selection and placement of masking loudspeakers to control ambient sound is
essential for achieving sound privacy in an open office environment; this is true for
individual workspaces, as well as in common areas frequented by office workers (i.e.,
hallways and lounges). Without similar sound levels in both, the workspace could be
perceived as noisy. In areas where accurate speech communication is necessary (i.e.,
conference or meeting rooms), masking is not recommended.
This model is specifically designed for use in T-Bar support systems and is ideal for
shallow ceiling applications. Because the loudspeaker is situated as close to the T-Bar as
possible, the remaining area enables maximum sound dispersion. Additional units may
be required in the following instances: the transmission loss of ceiling panels is low; the
distance between the tiles and soffit deck is shallow; the area is occupied by equipment
(i.e., HVAC equipment); and if the workspace below has a lower ceiling and small
cubicles.
General description
Model allows upward sound dispersion and includes two 23 %" (603mm) channel
support rails and the necessary hardware for installation in T-Bar ceilings. Heavy-gauge
CRS enclosure is acoustically treated with undercoating and 1V2 lb./ft.3 density
fiberglass to absorb the resonance associated with high-frequency sound transmission.
Unit is finished in black epoxy.
Factory-mounted and wired 70.7V (T7) transformer is supplied with .5,
1, 2, and 5 Watt primary taps. Taps are externally accessible to facilitate power
selection without dismantling the assembly.
Model enclosure offers a cubic content of 529 in3 (.087 m3) C10A,
8" Diameter loudspeaker and a 70.7V (T7) transformer. Loudspeaker mounting plate
contains no perforated grille and thus positions the speaker cone as fully exposed.
M812-S2T7-BX-RS
Power rating
Power taps
Volume
Frequency Response
Sensitivity
UL Listed
5 Watts @ 70.7V
.5, 1, 2, & 5 Watts
529 in3 (.087m3)
100Hz - 10kHz
94dB
1480
Architect And Engineer Specifications
Sound masking assembly shall be Atlas Sound Model . Unit shall
contain Atlas Sound 8" (203mm) diameter loudspeaker Model C10A equipped with a
70.7V transformer, an enclosure, baffle, and related mounting hardware. System shall
be factory-assembled, wired, and ready for installation. Assembly shall include
transformer leads externally accessible with .5, 1, 2, and 5 Watt power taps clearly
identified. Suitable strain relief shall be installed to protect transformer leads. The
CRS enclosure shall measure [M812: 115/8" (295mm) Square x 4"
(102mm) D; It shall have a volume of [M812: 529 in3 (0.087m3);
Enclosure shall be undercoated and have 1V2 lb./ft.3 density fiberglass installed.
Enclosure shall be finished in black epoxy