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).
alpha AKUSTIK Slot-and-Hole Panel
ALPHA-AKUSTIK Slot-and-Hole Panel "BV" / Vari
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
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 30 variants
Choose perforation
Frequency values
αp per octave band
| 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 | |
|---|---|---|
| 1.6 in Isover SSP2 + 5.5 in air gap | NRC0.90 | |
| 1.6 in Isover SSP2 | NRC0.90 | |
| 15 in air gap | NRC0.70 |
Test report: BAE 17-310-05
NRC: 0.90 (derived from ISO 354 lab data)
Institute: BAE Fiedler – Office for Acoustics and Engineering (Lahnau)
Measurement date: 2017-04-12
Perforation: 16-2 BV
Measured values as a table (30 measurements)
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