Manufacturer
BVS Akustik
BVS Akustik GmbH & Co. KG from Verl (East Westphalia) has been active in the furniture industry since 1990 and produces custom acoustic panels with CNC saws, purpose-built drilling lines and an in-house laser system. Almost all board materials are processed: solid wood, veneered, composite and decor boards, each cut, edge-finished and lacquered to the customer's specification. The range covers drilled (AKUSTIbohr), micro-perforated (AKUSTIpur), slotted (AKUSTIpan) and sound-absorbing partition elements (AKUSTItrenn), each in numerous hole patterns and build-up depths. The elements are available in fire classes B1 and B2 and, for sports halls, with certified ball-impact resistance. References include Princeton University, NYU and the Emser Therme.
AKUSTIpan green silence Acoustic Panel
AKUSTIpan green silence
Description
AKUSTIpan green silence is an acoustic panel made from untreated solid spruce, produced as an 18 mm glued lamella with a stable finger-jointed bond. The spruce comes from sustainable forestry, the wood remains low-emission and this is documented by an emissions test to DE-UZ 38. The face is slotted at 2, 3 or 4 mm, the back carries openings and is optionally fitted with acoustic fleece. The panel is offered on a 16 mm grid (2940 x 160 x 18 mm) and a 32 mm grid (2940 x 192 x 18 mm), on request with irregular slotting to minimise the moiré effect. The edges are formed as a tongue-and-groove joint, producing a seamless continuous look; the surface can be left sanded raw, oiled, waxed or lacquered with water-based paints. Cuts, cut-outs and beam integrations can be carried out directly on site, which also makes the panel suitable for work on existing buildings. Acoustically, the panel only works through the interplay of the slotting on the face, the openings on the back and the build-up behind it: slot width and build-up depth determine in which frequency range sound is absorbed, and can be adjusted at no extra cost through the slot spacing. Sound absorption is determined in the reverberation room per EN ISO 354 and rated per EN ISO 11654; for design work the full third-octave curve matters alongside the weighted single-number rating, and not the individual figure alone.
Technical data
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 28 variants
Choose the look
Choose the slot pattern · web / slot width in mm
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.70 | 1.00 | 0.80 | 0.65 | 0.55 |
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| Compare | Gap / cavity | Value |
|---|---|---|
| h=70 mm · 22 mm air gap | αw0.70 | |
| h=100 mm · 52 mm air gap | αw0.70 | |
| h=200 mm · 152 mm air gap | αw0.70 | |
| h=50 mm · 2 mm air gap | αw0.65 |
Absorber class: C
Test report: 1939-003-21
Institute: SG-Bauakustik, Institute for Acoustic Product Optimisation
Measurement date: 2021-09-01
Perforation: 13/3
Measured values as a table (28 measurements)
| Build-up | αw | Absorber class | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12/4 · h=50 mm · 2 mm air gap | 0.70 | C | 0.39 | 0.40 | 0.57 | 0.48 | 0.58 | 0.73 | 0.85 | 0.99 | 0.99 | 0.96 | 0.89 | 0.82 | 0.73 | 0.61 | 0.60 | 0.56 | 0.61 | 0.57 |
| 12/4 · h=70 mm · 22 mm air gap | 0.70 | C | 0.53 | 0.58 | 0.60 | 0.63 | 0.69 | 0.92 | 0.99 | 1.15 | 0.93 | 0.89 | 0.80 | 0.75 | 0.72 | 0.61 | 0.64 | 0.65 | 0.61 | 0.57 |
| 12/4 · h=100 mm · 52 mm air gap | 0.70 | C | 0.60 | 0.64 | 0.77 | 0.87 | 0.79 | 0.94 | 1.08 | 0.96 | 0.94 | 0.85 | 0.79 | 0.73 | 0.62 | 0.68 | 0.65 | 0.60 | 0.63 | 0.60 |
| 12/4 · h=200 mm · 152 mm air gap | 0.70 | C | 1.05 | 0.85 | 0.97 | 0.95 | 0.86 | 0.83 | 0.89 | 0.86 | 0.78 | 0.68 | 0.60 | 0.74 | 0.72 | 0.71 | 0.64 | 0.63 | 0.62 | 0.54 |
| 13/3 · h=50 mm · 2 mm air gap | 0.65 | C | 0.47 | 0.49 | 0.50 | 0.44 | 0.61 | 0.78 | 0.91 | 1.00 | 0.99 | 0.93 | 0.79 | 0.75 | 0.67 | 0.57 | 0.56 | 0.57 | 0.57 | 0.55 |
| 13/3 · h=70 mm · 22 mm air gap | 0.70 | C | 0.48 | 0.60 | 0.60 | 0.62 | 0.69 | 0.84 | 1.05 | 1.00 | 1.03 | 0.90 | 0.76 | 0.75 | 0.67 | 0.63 | 0.58 | 0.60 | 0.58 | 0.54 |
| 13/3 · h=100 mm · 52 mm air gap | 0.70 | C | 0.54 | 0.70 | 0.81 | 0.89 | 0.96 | 0.98 | 1.07 | 0.95 | 0.91 | 0.87 | 0.72 | 0.68 | 0.61 | 0.62 | 0.60 | 0.61 | 0.57 | 0.60 |
| 13/3 · h=200 mm · 152 mm air gap | 0.70 | C | 0.99 | 0.75 | 0.94 | 1.05 | 0.86 | 0.98 | 0.81 | 0.86 | 0.84 | 0.66 | 0.61 | 0.75 | 0.67 | 0.65 | 0.61 | 0.58 | 0.59 | 0.57 |
| 14/2 · h=50 mm · 2 mm air gap | 0.55 | D | 0.49 | 0.51 | 0.46 | 0.52 | 0.72 | 0.81 | 0.98 | 1.09 | 0.95 | 0.86 | 0.76 | 0.71 | 0.60 | 0.49 | 0.46 | 0.47 | 0.46 | 0.40 |
| 14/2 · h=70 mm · 22 mm air gap | 0.60 | C | 0.58 | 0.62 | 0.57 | 0.63 | 0.74 | 0.86 | 0.93 | 1.06 | 0.92 | 0.85 | 0.73 | 0.65 | 0.57 | 0.55 | 0.49 | 0.46 | 0.45 | 0.39 |
| 14/2 · h=100 mm · 52 mm air gap | 0.60 | C | 0.55 | 0.60 | 0.90 | 0.83 | 0.85 | 0.98 | 1.05 | 1.00 | 0.94 | 0.71 | 0.68 | 0.63 | 0.57 | 0.51 | 0.51 | 0.50 | 0.46 | 0.46 |
| 14/2 · h=200 mm · 152 mm air gap | 0.60 | C | 1.06 | 0.88 | 1.00 | 1.09 | 0.90 | 0.86 | 0.85 | 0.84 | 0.73 | 0.65 | 0.61 | 0.64 | 0.57 | 0.53 | 0.48 | 0.52 | 0.48 | 0.44 |
| 28/4 · h=50 mm · 2 mm air gap | 0.45 | D | 0.59 | 0.55 | 0.60 | 0.60 | 0.58 | 0.71 | 0.88 | 0.93 | 0.69 | 0.70 | 0.60 | 0.52 | 0.44 | 0.41 | 0.35 | 0.37 | 0.36 | 0.39 |
| 28/4 · h=70 mm · 22 mm air gap | 0.50 | D | 0.61 | 0.63 | 0.67 | 0.66 | 0.63 | 0.73 | 0.80 | 0.82 | 0.72 | 0.56 | 0.52 | 0.54 | 0.48 | 0.41 | 0.39 | 0.38 | 0.40 | 0.35 |
| 28/4 · h=100 mm · 52 mm air gap | 0.50 | D | 0.64 | 0.69 | 0.91 | 0.84 | 0.79 | 0.76 | 0.79 | 0.75 | 0.66 | 0.59 | 0.50 | 0.48 | 0.43 | 0.39 | 0.41 | 0.42 | 0.42 | 0.41 |
| 28/4 · h=200 mm · 152 mm air gap | 0.50 | D | 1.03 | 0.92 | 0.97 | 0.81 | 0.64 | 0.65 | 0.67 | 0.61 | 0.51 | 0.55 | 0.45 | 0.46 | 0.46 | 0.44 | 0.41 | 0.38 | 0.41 | 0.37 |
| 29/3 · h=50 mm · 2 mm air gap | 0.45 | D | 0.46 | 0.50 | 0.64 | 0.52 | 0.58 | 0.66 | 0.83 | 0.88 | 0.71 | 0.69 | 0.53 | 0.51 | 0.42 | 0.39 | 0.35 | 0.34 | 0.38 | 0.38 |
| 29/3 · h=70 mm · 22 mm air gap | 0.45 | D | 0.60 | 0.68 | 0.64 | 0.65 | 0.61 | 0.79 | 0.87 | 0.76 | 0.71 | 0.61 | 0.51 | 0.47 | 0.47 | 0.38 | 0.35 | 0.37 | 0.39 | 0.35 |
| 29/3 · h=100 mm · 52 mm air gap | 0.50 | D | 0.68 | 0.71 | 0.87 | 0.78 | 0.83 | 0.80 | 0.74 | 0.72 | 0.66 | 0.56 | 0.49 | 0.48 | 0.43 | 0.38 | 0.38 | 0.40 | 0.40 | 0.40 |
| 29/3 · h=200 mm · 152 mm air gap | 0.45 | D | 0.94 | 0.86 | 0.83 | 0.79 | 0.74 | 0.77 | 0.73 | 0.66 | 0.61 | 0.47 | 0.48 | 0.44 | 0.44 | 0.41 | 0.37 | 0.40 | 0.36 | 0.33 |
| 30/2 · h=50 mm · 2 mm air gap | 0.40 | D | 0.47 | 0.51 | 0.61 | 0.55 | 0.67 | 0.82 | 0.73 | 0.75 | 0.63 | 0.61 | 0.50 | 0.47 | 0.39 | 0.31 | 0.31 | 0.31 | 0.33 | 0.32 |
| 30/2 · h=70 mm · 22 mm air gap | 0.40 | D | 0.64 | 0.77 | 0.67 | 0.77 | 0.65 | 0.71 | 0.81 | 0.79 | 0.61 | 0.52 | 0.48 | 0.43 | 0.36 | 0.35 | 0.33 | 0.33 | 0.30 | 0.26 |
| 30/2 · h=100 mm · 52 mm air gap | 0.40 | D | 0.66 | 0.64 | 0.78 | 0.89 | 0.73 | 0.78 | 0.70 | 0.69 | 0.61 | 0.47 | 0.46 | 0.43 | 0.39 | 0.36 | 0.35 | 0.33 | 0.31 | 0.27 |
| 30/2 · h=200 mm · 152 mm air gap | 0.40 | D | 1.02 | 0.81 | 0.85 | 0.77 | 0.65 | 0.58 | 0.62 | 0.64 | 0.53 | 0.46 | 0.41 | 0.41 | 0.38 | 0.36 | 0.31 | 0.34 | 0.31 | 0.25 |
| irreg/2 · h=50 mm · 2 mm air gap | 0.55 | D | 0.50 | 0.52 | 0.57 | 0.56 | 0.63 | 0.76 | 0.87 | 0.93 | 0.91 | 0.87 | 0.65 | 0.62 | 0.55 | 0.48 | 0.47 | 0.43 | 0.39 | 0.39 |
| irreg/2 · h=70 mm · 22 mm air gap | 0.55 | D | 0.63 | 0.59 | 0.66 | 0.70 | 0.67 | 0.75 | 0.85 | 0.95 | 0.81 | 0.70 | 0.55 | 0.58 | 0.53 | 0.46 | 0.43 | 0.50 | 0.40 | 0.41 |
| irreg/2 · h=100 mm · 52 mm air gap | 0.55 | D | 0.55 | 0.69 | 0.75 | 0.78 | 0.85 | 0.85 | 0.86 | 0.79 | 0.82 | 0.69 | 0.58 | 0.52 | 0.52 | 0.49 | 0.49 | 0.46 | 0.39 | 0.40 |
| irreg/2 · h=200 mm · 152 mm air gap | 0.55 | D | 1.12 | 0.77 | 0.91 | 0.87 | 0.79 | 0.77 | 0.80 | 0.76 | 0.66 | 0.54 | 0.52 | 0.53 | 0.51 | 0.48 | 0.48 | 0.44 | 0.43 | 0.38 |
Measured values as a table (28 measurements)
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