How to Sound Proof recessed lighting OR in-ceiling speakers

Efficiency Matrix demonstrating the sound proofing capabilities of its products with a simple radio test for the adoption in recessed lighting and in ceiling speaker installation with an install from below the ceiling. Our downlight covers behave like an extension of the plasterboard assisting buildings to maintain the building envelope for heating and cooling energy efficiency benefits.
http://efficiencymatrix.com.au

Thanks! You've already liked this