Manufacturer
akustikplus GmbH & Co. KG
akustikplus develops and manufactures decorative acoustic solutions from wood-based materials at its site in Stephanskirchen near Rosenheim. The company belongs to the Hamberger Group and combines industrial production with real-wood veneer expertise. The range comprises four product lines: smartline (acoustic panels with an integrated wood-wool absorber), slimline (slender slotted panels mounted over a mineral-wool insulation layer), proline (micro-perforated acoustic boards, also available as a furniture board decorative on both sides) and designline (felt panels with veneered MDF slats). Non-combustible versions on a gypsum-fibre base are available on request.
designline 19 mm
designline 19 mm
Description
The designline is a felt panel with applied MDF slats in a real-wood veneer or decorative laminate surface, giving a classic slatted look. The dark PET felt substrate remains visible between the slats and forms the absorbing layer. It is mounted using assembly adhesive or screwed through the felt substrate, optionally with an open cavity behind it for greater depth effect. The standard version can be used on walls and ceilings. The slats are available as veneer or film-laminated in several oak tones as well as concrete grey.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.30 | 0.70 | 0.75 | 0.65 | 0.65 |
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| Compare | Value | |
|---|---|---|
| 3.9 in cavity (offen) | NRC0.60 | |
| without cavity (direkt) | NRC0.40 |
Test report: SLE-22/08-026/AK
NRC: 0.60 (derived from ISO 354 lab data)
Institute: EUROAKUSTIK s.r.o., Bratislava
Measurement date: 2022-08-23
Room volume: 7,345 cu ft
Object area: 118 sq ft
Dimensions: Overall build-up 4.7 in
Measured values as a table (2 measurements)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| without cavity (direkt) | 0.40 | 0.03 | 0.03 | 0.03 | 0.04 | 0.07 | 0.08 | 0.12 | 0.18 | 0.27 | 0.41 | 0.51 | 0.60 | 0.78 | 0.86 | 0.92 | 0.87 | 0.73 | 0.65 |
| 100 mm cavity (offen) | 0.60 | 0.07 | 0.09 | 0.13 | 0.22 | 0.27 | 0.40 | 0.59 | 0.72 | 0.86 | 0.84 | 0.76 | 0.72 | 0.58 | 0.68 | 0.69 | 0.66 | 0.65 | 0.63 |
Measured values as a table (2 measurements)
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