Product Review

The OSD Audio Commercial 70V In-Ceiling Speakers offer great sound quality, making these speakers great for installation throughout all commercial buildings.

Optimal Speaker Design is engaged in the design, engineering, and distribution of high-quality home and commercial audio products. Our products range in complexity from simple in-ceiling speakers to whole house audio systems—all with beautiful styling and high-end sound quality.

Our U.S.-based research, development and design team, is supported by a network of cutting-edge acoustical, mechanical and electrical engineers. Together, we create products that combine the latest technology with ease of use for a quality sound experience.

With extensive product and application knowledge, our exceptional team provides you with custom solutions to create the perfect audio solution.