D4-Acoustic Wooden Panel
General Features
| Surface Coating | MDF Lam, MDF, Plywood, Polished Wood Veneer, Lacquer Painted, Laminated Veneer |
| Thickness (mm) | 18 (Please contact us for other materials and thicknesses) |
| Approximate Weight (kg/m²) | ~10,88 kg/m² |
| Sizes (cm) | 68×138, 60×60, 32×278 (Please contact us for special sizes) |
Acoustic Features
| Channel Spacing (mm) | – |
| Hole Diameter (mm) | 8 |
| Number of Holes (m2 /Units) | 4000 |
| Hole Spacing (mm) | 16×16 |
| Backside | Interlining |
| Perforation Rate (%) | 19,6 |
NRC : 0,96
| Frequency (Hz) | 50 | 63 | 80 | 100 | 125 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 1600 | 2000 | 2500 | 3150 | 4000 | 5000 |
| Sound Absorption Coefficient | 0,25 | 0,20 | 0,29 | 0,63 | 0,52 | 0,68 | 0,95 | 1,04 | 1,03 | 1,09 | 1,06 | 1,03 | 1,02 | 0,99 | 0,91 | 0,81 | 0,73 | 0,67 | 0,63 | 0,65 | 0,67 |