MAkustik MA04 slotted wood acoustic panel with mineral wool

Type 5/3 – MAkustik MA04 continuously slotted

PTB reference data

Original description

Material properties

Manufacturer: MAkustik

Thickness: 46 mm

Wall distance: 320 mm

Perforation: 38% slots (approx. 16% open area)

Hole size: 3 mm

Backing: 30 mm mineral wool

Surface: acoustic non-woven faced

ISO 354 – reverberation chamber

αw

0.93

αp nach ISO 11654

125 Hz

0.80

250 Hz

0.95

500 Hz

0.85

1000 Hz

1.05

2000 Hz

1.00

4000 Hz

0.80

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Method (354): Measured