proline finest
proline finest
NRC 0.85–0.95
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.
Description
proline is a large-format, micro-perforated acoustic panel in real-wood veneer or CPL. At normal viewing distance the perforation recedes strongly and the panel reads as a calm wood surface. It is mounted over a mineral wool insulation layer, optionally with an additional open cavity for greater low-frequency effect. The finest perforation uses the finest hole pattern in the line and is direction-dependent. During fabrication, panel orientation must be observed even for plain decorative laminates. From a normal viewing distance the surface appears almost closed.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 3 variants
Frequency values
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| Compare | Value | |
|---|---|---|
| 5.9 in cavity (open) | NRC0.95 | |
| 14 in cavity (open) | NRC0.90 | |
| without cavity (direct) | NRC0.85 |
NRC: 0.95 (derived from ISO 354 lab data)
Dimensions: Overall build-up 8.7 in
Measured values as a table (3 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 (direct) · 1.2 in mineral wool | 0.85 | 0.11 | 0.34 | 0.23 | 0.35 | 0.46 | 0.70 | 0.87 | 0.95 | 1.08 | 1.08 | 1.04 | 1.01 | 0.96 | 0.88 | 0.80 | 0.78 | 0.78 | 0.67 |
| 5.9 in cavity (open) · 2 in mineral wool | 0.95 | 0.40 | 0.48 | 0.85 | 0.75 | 0.99 | 0.91 | 0.67 | 0.85 | 0.95 | 0.93 | 1.01 | 0.98 | 0.95 | 0.91 | 0.87 | 0.82 | 0.77 | 0.70 |
| 14 in cavity (open) · 2 in mineral wool | 0.90 | 0.51 | 0.61 | 0.76 | 0.75 | 0.84 | 0.81 | 0.84 | 0.83 | 0.94 | 0.99 | 0.99 | 0.98 | 0.95 | 0.95 | 0.93 | 0.90 | 0.86 | 0.82 |
Measured values as a table (3 measurements)
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