Manufacturer

alpha AKUSTIK

alpha AKUSTIK is the acoustics brand of Staudigel GmbH from Veitshöchheim — a family business with over 70 years of experience in wood processing. On around 7,500 m² of production area the company manufactures sound-absorbing perforated, slotted and micro-perforated panels (NANOLITE) on an MDF base for wall and ceiling. The panels are built up with a backing acoustic fleece (SoundTex) and mineral insulation into acoustically effective claddings. The range spans from discreetly perforated visible surfaces to highly absorbent slot-and-hole patterns and is broadly documented by accredited reverberation-chamber measurements (Fraunhofer IBP, BAE Fiedler, ita).

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alpha AKUSTIK Slotted Panel (Inner Groove)

Name: alpha AKUSTIK Slotted Panel (Inner Groove)
Brand: alpha AKUSTIK

ALPHA-AKUSTIK Slotted Panel (inner groove 20/N10) & WAVY

WallCeiling

Description

The slotted acoustic panel of the inner-groove type (20/N10) by alpha AKUSTIK: an MDF panel with narrow visible slots and a rear groove, backed with acoustic fleece. The fine line look stays calm while the rear groove enlarges the sound-absorbing area. Tunable via slot pattern (e.g. 20/N10-16-2) and backing, from medium to very high absorption. This range also includes the three-dimensional WAVY wall lining.

Technical data

Material: MDF carrier board with a rear inner groove and SoundTex acoustic fleece; backed with mineral wool (Rockwool Sonorock) or an air gap

Surface: slotted (visible slots), rear inner groove; raw, veneered or coated; WAVY as a three-dimensional surface

Application: sound-absorbing wall and ceiling lining; also as a closed element and cabinet door

Certifications: Accredited reverberation-chamber measurements per DIN EN ISO 354 (evaluated per DIN EN ISO 11654): Fraunhofer Institute for Building Physics (IBP, Stuttgart), BAE Fiedler (Lahnau), ita Ingenieurgesellschaft (Wiesbaden) and test centre STS 121 (CH)

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 29 variants

Choose perforation

αw

0.85

Frequency values

αp per ISO 11654

f (Hz)	125	250	500	1k	2k	4k
αp	0.25	0.70	1.00	0.90	0.75	0.85

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Compare		Value
	40 mm Sonorock	αw0.85
	40 mm Sonorock + 140 mm Luft	αw0.85
	380 mm Luft	αw0.60

Absorber class: B

Test report: P-BA 109/2003

Institute: Fraunhofer Institute for Building Physics (IBP), Stuttgart

Measurement date: 2003-09-12

Perforation: 20/N10-16-3