Acoustic Plena are engineered chambers designed to reduce noise within ducted HVAC systems or air handling units. They provide attenuation where space is limited or where standard attenuators cannot be used.

At NCS Acoustics, we design custom acoustic plena to suit the geometry and performance requirements of your project. Whether you’re dealing with restricted ceiling voids, complex duct routing, or unusual airflow conditions, we can develop a tailored solution that fits your space.

Our acoustic plena can be supplied with custom internal linings—including perforated metal, high-performance acoustic insulation, and hygiene-rated finishes—to meet both acoustic and operational requirements. Plena can also offer improved attenuation at low frequencies, where traditional solutions may struggle.