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- Acoustic measurements – speaker cloth FR
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Description for Speaker Cloth, covering fabric, box fabric "FR" Green Olive green (252) flame-retardant Speaker Cloth
Acoustic fabric FR: sound-permeable and flame-retardant
Acoustic fabric FR - a unique combination of outstanding sound quality and exemplary fire protection. This remarkable material has been certified as "non-flammable" (M1) in accordance with the NFP 92503 standard and therefore fulfils the highest standards for public buildings and wherever flame-retardant materials are required. Enjoy unrestricted sound and safety in perfect harmony.
Colour: Olive green
Width: 160 cm
Length: 100 - 500 cm (larger quantities here)
Acoustic fabric FR - a unique combination of outstanding sound quality and exemplary fire protection. This remarkable material has been certified as "non-flammable" (M1) in accordance with the NFP 92503 standard and therefore fulfils the highest standards for public buildings and wherever flame-retardant materials are required. Enjoy unrestricted sound and safety in perfect harmony.
Colour: Olive green
Width: 160 cm
Length: 100 - 500 cm (larger quantities here)
Manufacturer information
Contact manufacturer
akustikstoff.com Inh. Rüdiger Mauelshagen
Weschnitzmühle 9
69509 Mörlenbach
Germany
+49 6209 712792
shop@akustikstoff.com
Weschnitzmühle 9
69509 Mörlenbach
Germany
+49 6209 712792
shop@akustikstoff.com
Contact EU responsible person
Germany
There are two sound transparency measurement diagrams for every type of acoustic cloth available from Akustikstoff.com:
Diagram 1 shows the measurement in decibels (dB). It indicates how strongly sound is attenuated across different frequency ranges.
Diagram 2 shows the measurement in dBFS (decibels relative to Full Scale). This is a digital reference measurement that represents the acoustic behaviour in relation to the maximum signal level.
Each diagram contains several curves illustrating the effect of fabric tension (stretching):
- without fabric → reference measurement (open transmission)
- fabric at 0% stretch → unstretched condition
- fabric at 3% stretch → typical installation tension
- fabric at 5% stretch → maximum recommended tension
These measurements demonstrate how minimal the influence of the speaker fabric is on sound reproduction. Even at different tension levels, the sound transparency remains virtually unchanged.
Product Features