Designed ideally for conference rooms, classrooms, small offices, and meeting spaces of the like, the Pure Resonance Audio line of commercial sound systems provide crystal clear sound reproduction on a budget. The heart of these systems is the Pure Resonance Audio SD series of wide dispersion 2×2 in-ceiling speakers, which are incredibly easy to install.
A conventional in-ceiling system provides multiple down-firing speakers, which means that a person directly underneath the speaker gets more volume than a person positioned to the side of the speaker. The SD series (including the SD4, VCA Vector, and VCA8), feature multiple speakers inside of one chassis, perfectly angled and aligned to spread sound throughout a room, evenly and smoothly — the person beneath the speaker and the person off to the side receive the same amount of volume.
The SD Series of Sound Systems are designed for several applications:
- Conference Room Sound Systems
- Classroom Sound Systems
- Retail Store Sound Systems
- House of Worship Sound Systems
- Office Sound Systems
- Medical Sound Systems
- Restaurant Sound Systems

