Quam Nichols Company ERD8U Universal Back Box

Product Description

The QUAM NICHOLS COMPANY ERD8U is a universal back box enclosure designed for use with in-ceiling and in-wall speaker installations. Back boxes provide a dedicated acoustic chamber behind the speaker driver, improving sound isolation and low-frequency response compared to open-cavity mounting. This type of enclosure is a standard component in commercial audio, intercom, and paging system installations and is typically installed by low-voltage technicians or licensed audio-visual contractors. It ships as a single unit and is designed for straightforward integration into ceiling or wall assemblies.

The ERD8U is suited for in-ceiling and in-wall speaker applications across commercial and light commercial environments. Typical installation scenarios include office paging systems, retail background music systems, and institutional intercom networks where acoustic performance and fire or building code compliance require an enclosed speaker back box. The universal design is intended to accommodate a range of speaker sizes and mounting configurations without requiring system-specific hardware modifications.

Key Features

• Universal fit designed for in-ceiling and in-wall speaker applications
• Provides an enclosed acoustic chamber to improve sound performance over open-cavity mounting
• Single-unit package for straightforward procurement and installation
• Compatible with commercial paging, intercom, and background music system speakers

Compatibility

Designed as a universal back box enclosure for in-ceiling and in-wall speaker installations across a range of commercial audio and paging systems.

Installation Notes

Installation is typically performed by a low-voltage technician or licensed audio-visual contractor. Power to the associated audio or paging circuit should be disconnected before installing the back box and speaker assembly. Installations must comply with applicable local building codes, including fire-rated assembly requirements where applicable. Do not modify the enclosure in ways that compromise its acoustic seal or structural integrity.