Mineral woolLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Value from the PTB table, not verified
Fiberboard, 1/2 inch normal soft, mounted over 1 inch air space
PTB reference data
Original description
Fiberboard, 1/2 inch normal soft, mounted over 1 inch air space
Material properties
Thickness: 1/2 inch
Wall distance: 1 inch
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
Value
—
Frequency values
αp per octave band
| f (Hz) | 125 | 500 | 2k |
|---|---|---|---|
| αp | 0.30 | 0.15 | 0.10 |
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Distance: 1-in
No measurement data available.