Acoustics type 1 LFE
Grooving width 20 mm, length 250 mm
Grid: 81/400 mm
αw = 0.55
Sound absorption class: D
NRC = 0.55
Acoustics type 2 LFE
Perforation diameter 30 mm
Grid 81/75 mm
αw = 0.50
Sound absorption class: D
NRC = 0.60
Acoustics type 3 LFE
Perforation diameter 20 mm
Grid 40/40 mm
αw = 0.90
Sound absorption class A
NRC = 0.85
Acoustics type 3.1 LFE
Stripe-perforation diameter 20 mm
Grid 40/40 mm
αw = 0.75
Sound absorption class C
NRC = 0.70
Acoustics type 5 LFE
Perforation diameter 15 mm
Grid 40/40 mm
αw = 0.65
Sound absorption class: C
NRC = 0.70
Acoustics type 5.1 LFE
Stripe-perforation diameter 15 mm
Grid 40/40 mm
αw = 0.50
Sound absorption class: D
NRC = 0.55
Acoustics type 6 LFE
Perforation diameter 9 mm
Grid 20/20 mm
αw = 0.80
Sound absorption class: B
NRC = 0.75
Acoustics type 6.1 LFE
Stripe-perforation diameter 9 mm
Grid 20/20 mm
αw = 0.60
Sound absorption class: C
NRC = 0.65
Acoustics type 8 LFE
Grooving width 9 mm, length 380 mm
Groove interval 48 mm
αw = 0.50
Sound absorption class D
NRC = 0.45
Acoustics type 8.1 LFE
Stripe-grooving width 9, length 380 mm
Groove interval 48 mm
αw = 0.45
Sound absorption class D
NRC = 0.45
Acoustics type 9 LFE
Grooving width 5.5 mm, length 380 mm
Groove interval 24 mm
αw = 0.50
Sound absorption class D
NRC = 0.55
Acoustics type 9.1 LFE
Stripe-grooving width 5.5 mm, length 380 mm
Groove interval 24 mm
αw = 0.50
Sound absorption class D
NRC = 0.50
Acoustics type 1 - dyn. design LFE
Intensity: 256
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.28 | 0.34 | 0.46 | 0.54 | 0.45 | 0.29 |
Acoustics type 2 - dyn. design LFE
Intensity: 256
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.25 | 0.25 | 0.33 | 0.40 | 0.35 | 0.18 |
Acoustics type 3 - dyn. design LFE
Intensity: 256
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.35 | 0.51 | 0.59 | 0.55 | 0.50 | 0.58 |
Acoustics type 3.1 - dyn. design LFE
Intensity: 448
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.37 | 0.58 | 0.67 | 0.62 | 0.57 | 0.66 |
Acoustics type 5 - dyn. design LFE
Intensity: 256
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.31 | 0.48 | 0.51 | 0.40 | 0.31 | 0.43 |
Acoustics type 5.1 - dyn. design LFE
Intensity: 448
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.33 | 0.54 | 0.58 | 0.45 | 0.36 | 0.49 |
Acoustics type 6 - dyn. design LFE
Intensity: 256
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.31 | 0.44 | 0.59 | 0.55 | 0.39 | 0.46 |
Acoustics type 6.1 - dyn. design LFE
Intensity: 352
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.30 | 0.41 | 0.55 | 0.51 | 0.36 | 0.43 |
Acoustics type 8 - dyn. design LFE
Intensity: 384
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.29 | 0.38 | 0.43 | 0.43 | 0.38 | 0.28 |
Acoustics type 8.1 - dyn. design LFE
Intensity: 384
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.27 | 0.32 | 0.36 | 0.36 | 0.31 | 0.24 |
Acoustics type 9 - dyn. design LFE
Intensity: 384
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.34 | 0.43 | 0.52 | 0.52 | 0.43 | 0.33 |
Acoustics type 9.1 - dyn. design LFE
Intensity: 384
The predicted statistical sound absorption coefficients of the acoustic surface elements with dynamic design are based on the measured values of the LIGNATUR surface elements of acoustic types 1 to 9.1.
Sound absorption coefficients:
| α125 | α250 | α500 | α1000 | α2000 | α4000 |
| 0.31 | 0.36 | 0.44 | 0.44 | 0.35 | 0.27 |
