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 Slot-and-Hole Panel

Name: alpha AKUSTIK Slot-and-Hole Panel
Brand: alpha AKUSTIK

ALPHA-AKUSTIK Slot-and-Hole Panel "BV" / Vari

WallCeiling

Description

The alpha AKUSTIK "BV" slot-and-hole panel combines slots and holes in an MDF carrier board, achieving high absorption across a broad frequency range, backed with mineral wool (Isover SSP2 or Rockwool Sonorock) and acoustic fleece. Available in several slot-and-hole patterns (8-2 BV to 32-4 BV) and as the variable "Vari" range. Predominantly class A even in the slim 60 mm build-up.

Technical data

Material: MDF carrier board with combined slot/hole perforation and acoustic fleece; backed with mineral wool (Isover SSP2 / Rockwool Sonorock)

Surface: slot-and-hole combination; raw, veneered or coated

Application: highly absorbent wall and ceiling lining

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· 30 variants

Choose perforation

αw

0.90

Frequency values

αp per ISO 11654

f (Hz)	125	250	500	1k	2k	4k
αp	0.50	0.90	0.90	0.90	0.85	0.75

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Compare		Value
	40 mm Isover SSP2 + 140 mm Luft	αw0.90
	40 mm Isover SSP2	αw0.85
	380 mm Luft	αw0.70

Absorber class: A

Test report: BAE 17-310-05

Institute: BAE Fiedler – Büro for Akustik and Engineering (Lahnau)

Measurement date: 2017-04-12

Perforation: 16-2 BV