Speaker and lighting backboxes will prevent sound from collecting inside a wall or joist cavity, improve sound quality and maintain the required fire ratings.


ECCOBOX Lighting and Speaker Back Box

ASTM E119 / ASTM E84/NFPA70 / UL 263/NFPA 251 (1-hour)

The ECCOBOX thermo-acoustic speaker and lighting enclosures are constructed of recycled, compressed 1" cotton and designed to isolate speaker back wave sound transmission within a wall or ceiling structure. ECCOBOX enclosures are also ideally suited to prevent sound transmission through a recessed lighting fixture from heel impact and upper level noise. ECCOBOX enclosures are available in two sizes, lightweight, easy to construct and install, environmentally friendly and suitable for use in commercial applications.

- 1" thick compressed cotton with .5 mil aluminum outer facing
- Better speaker performance - absorption combined with STC value
- Effective acoustic barrier for adjacent rooms, high STC
. R-15 thermal insulative value
- ASTM E119 / ASTM E84/NFPA70 / UL 263/NFPA 251 (1-hour)
- Packaged flat for easy shipping and storage
- Very lightweight for reduced shipping costs

- Commerical grade fire rated back boxes
- In ceiling and In wall speaker installations
- Above recessed lighting fixtures

SKU's & Sizes:
- SB-EB-14147 (14.5" x 14.5" x 7")
- SB-EB-14227 (14.5" x 22.5" x 7")
- SB-EB-14229 (14.5" x 22.5" x 9")

Sound Absorption
Size Mount 125Hz 250Hz 500Hz 1KHz 2KHz 4KHz NRC
1” A .09 .24 .86 .98 .98 1.03 .75

STC 125Hz 250Hz 500Hz 1KHz 2KHz 4KHz STC
12 12 14 13 20 29 17

See ECCOBOX Assembly Video

 Cascade Audio Engineering  Bend, Oregon USA Phone: 541.389.6821 • Fax: 541.389.5273 • E-mail: sales@cascadeaudio.com
 © 2014 Cascade Audio Engineering, Inc., All rights reserved.






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