SONEX® Super Wedges
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.

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
Fire 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
Microbial 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