SONEX® SUPER WEDGES
SONEX® Super Wedges For Sound Absorption
Designed to be used in situations where low-frequency issues are a problem, SONEX Super Wedges are most often found in anechoic test chambers. These 12"x12" wedges are 6 inches thick and feature an exaggerated, yet symmetrical, anechoic wedge pattern.
SONEX Super Wedges can dramatically improve the accuracy of sound measurements by eliminating bounce-back sounds such as echo, feedback and resonances.
Acoustic Test Environment Brochure (PDF)
Technical Specifications
Physical Data — willtec®
| Material | Open-cell melamine-based foam |
| Density | 0.5 to 0.7 lbs./cubic ft. (ASTM D3574-77) |
| Long-Term Service Temperature | 302 degrees F |
| Fir Resistance |
Class 1 per ASTM E 84 (all finishes) Meets UL 1715 (willtec natural) |
| Flame Spread per ASTM E 84 |
Natural: 5 Painted: 10 Hypalon®-coated: 25 |
| Smoke Density per ASTM E 84 |
Natural: 50 Painted: 10 Hypalon-coated: 65 |
| Mocrobial Growth | Passes UL 181, section 11 |
| Fungus Resistance | Rating 0 per ASTM G21 |
| Finishes | Natural, painted or Hypalon-coated |
Sound Absorption
| Finish | Thickness | Coefficients per ASTM C423-77a | ||||||
| 125Hz | 250Hz | 500Hz | 1kHz | 2kHz | 4kHz | NRC | ||
| Natural | 6" | 0.18 | 0.86 | 1.22 | 1.24 | 1.14 | 1.20 | 1.10 |
