Large open spaces such as school auditoriums, multi-function halls and conference centers are troubled by severe mid-low frequency reverberation. Traditional porous acoustic materials perform poorly on 250Hz-1000Hz low-frequency noise, which easily causes muddy sound and prolonged echoes. Resonant-type grooved and perforated acoustic panels effectively fill this industry blank in commercial acoustic design.
Based on Helmholtz resonance principle, wooden grooved and perforated panels are engineered with precise grooves and hole arrays. Equipped with a 50-100mm rear air cavity and matched mineral wool backing, the panels specially target low-frequency vibration noise and indoor standing waves. Combined surface absorption and cavity resonance help achieve full-frequency absorption with NRC up to 0.90.
Available in multiple wooden veneer finishes, resonant acoustic panels integrate perfectly with wooden-style interior designs for educational and public buildings. The standardized production ensures neat and uniform surface details, convenient for large-area wall installation and unified project delivery.
Currently, perforated and grooved acoustic panels have become essential acoustic materials for educational venues and performance spaces, offering the most professional solution to fix low-frequency acoustic defects for large-scale projects worldwide.
