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METAL Sonic Element

Nrc	0.55
Class	C
Pitch	90° straight
Shape	round
Border	over border perforated
Colour	black
Alpha w	0.60
Nominal	1800x1200x40 mm
Sabines	1.43
Material	non-woven acoustic fleece
Width mm	1200
Cavity mm	150
Height mm	40
Length mm	1800
Installation	bonded to tile back
Open area pct	1.5
Alpha p 125 hz	0.4
Alpha p 250 hz	1
Alpha p 500 hz	1
Acoustic infill	VLSRX
Alpha p 1000 hz	1
Alpha p 2000 hz	1
Alpha p 4000 hz	1
Perforation code	Rg 0701
Perforation name	Extramicro Perforation
Steel gauge max mm	0.7
Humidity resistance	90% RH
Perforation size mm	0.7
Acoustic infill colour	black
Reaction to fire class	A2-s1,d0
Acoustic infill material	non-woven acoustic fleece
Acoustic infill installation	bonded to tile back
Light reflectance ral 9010 pct	83

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