New Jersey · 2016
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.
Test report on request
AKUSTIbohr Acoustic Panel
AKUSTIbohr
Description
AKUSTIbohr is the BVS classic: a drilled acoustic panel made from almost any board material, whether solid wood with lively grain, veneered, composite or decor board. Drilling is based on a 32 mm grid, which allows a wide range of hole diameters, grids and hole patterns with clean hole edges and, on request, perforation on one side only. Cutting, edge margins, edge finishing and lacquering follow the specification for each project; with 8 mm perforation, concealed screw fixing with special dowels is possible. Acoustically, the panel only becomes effective through the interplay of perforation and the build-up behind it: acoustic fleece, insulation and an air gap behind the perforated panel form an absorber whose frequency response can be tuned through the hole pattern. Sound absorption is determined per hole pattern in the reverberation room to EN ISO 354 and rated to EN ISO 11654; for design work the full third-octave curve matters alongside the single-number rating. AKUSTIbohr is available in fire classes B1 and B2 and with certified ball-impact resistance for sports halls.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 20 variants
Choose the look
Choose the hole pattern · Ø / pitch in mm · stepped bore “4-8”: 4 mm front, 8 mm rear
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.90 | 0.90 | 0.80 | 0.80 | 0.85 |
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Test report: 12648
NRC: 0.85 (derived from ISO 354 lab data)
Institute: Swisscom (Schweiz) AG, Test Laboratory STS 121
Measurement date: 2008-05-06
Application: 20/0.6 in material thickness, acoustic fleece, 1.2 in insulation, 140/5.7 in air gap
Distance: h=7.5 in · 140/5.7 in air gap
Perforation: 4/8/8/P · 19,6 %
Measured values as a table (20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1,2-5/8/8/P · h=190 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.45 | 0.28 | 0.46 | 0.53 | 0.78 | 0.74 | 0.74 | 0.61 | 0.49 | 0.43 | 0.36 | 0.33 | 0.27 | 0.23 | 0.19 | 0.17 | 0.17 | 0.16 | 0.15 |
| 12/32/32/P · 11,0 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.55 | 0.27 | 0.37 | 0.50 | 0.77 | 0.73 | 0.73 | 0.69 | 0.60 | 0.55 | 0.49 | 0.47 | 0.49 | 0.47 | 0.46 | 0.46 | 0.51 | 0.63 | 0.80 |
| 3/8/8/P · h=50 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.80 | 0.10 | 0.20 | 0.22 | 0.59 | 0.73 | 0.88 | 1.02 | 1.07 | 1.07 | 0.97 | 0.89 | 0.76 | 0.68 | 0.60 | 0.51 | 0.51 | 0.50 | 0.55 |
| 4/10,67/10,67/P · h=100 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.25 | 0.23 | 0.52 | 0.66 | 0.60 | 0.69 | 0.72 | 0.72 | 0.76 | 0.73 | 0.72 | 0.71 | 0.70 | 0.68 | 0.74 | 0.73 | 0.82 | 0.87 |
| 4/10,67/10,67/P · h=200 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.31 | 0.27 | 0.66 | 0.65 | 0.64 | 0.69 | 0.65 | 0.64 | 0.66 | 0.66 | 0.62 | 0.68 | 0.69 | 0.69 | 0.67 | 0.69 | 0.69 | 0.67 |
| 4/10,67/10,67/P · h=300 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.47 | 0.37 | 0.61 | 0.59 | 0.57 | 0.69 | 0.67 | 0.64 | 0.64 | 0.65 | 0.72 | 0.68 | 0.70 | 0.69 | 0.69 | 0.67 | 0.68 | 0.67 |
| 4/8/8/P · 19,6 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.85 | 0.22 | 0.28 | 0.43 | 0.83 | 0.94 | 0.99 | 0.95 | 0.92 | 0.81 | 0.76 | 0.77 | 0.82 | 0.82 | 0.84 | 0.81 | 0.83 | 0.87 | 0.88 |
| 4-10/16/16/P · h=100 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.19 | 0.23 | 0.50 | 0.72 | 0.75 | 0.93 | 1.01 | 1.01 | 0.95 | 0.79 | 0.63 | 0.52 | 0.44 | 0.42 | 0.42 | 0.37 | 0.38 | 0.42 |
| 4-10/16/16/P · h=200 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.37 | 0.33 | 0.89 | 1.02 | 0.96 | 0.95 | 0.89 | 0.78 | 0.71 | 0.61 | 0.56 | 0.55 | 0.49 | 0.44 | 0.36 | 0.31 | 0.27 | 0.23 |
| 4-10/16/16/P · h=300 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.55 | 0.47 | 0.98 | 0.86 | 0.83 | 0.85 | 0.77 | 0.68 | 0.66 | 0.72 | 0.66 | 0.58 | 0.52 | 0.43 | 0.38 | 0.30 | 0.28 | 0.23 |
| 4-12/16/16/P · 4,9 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.23 | 0.34 | 0.47 | 0.86 | 0.85 | 0.94 | 0.86 | 0.73 | 0.66 | 0.61 | 0.60 | 0.57 | 0.48 | 0.42 | 0.38 | 0.36 | 0.29 | 0.26 |
| 4-8/16/16/P · h=100 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.20 | 0.20 | 0.50 | 0.67 | 0.69 | 0.90 | 0.88 | 0.88 | 0.85 | 0.79 | 0.68 | 0.57 | 0.49 | 0.46 | 0.48 | 0.43 | 0.44 | 0.47 |
| 4-8/16/16/P · h=200 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.42 | 0.34 | 0.81 | 0.83 | 0.84 | 0.86 | 0.74 | 0.73 | 0.71 | 0.60 | 0.59 | 0.60 | 0.54 | 0.50 | 0.42 | 0.39 | 0.33 | 0.28 |
| 4-8/16/16/P · h=300 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.65 | 0.58 | 0.52 | 0.82 | 0.73 | 0.73 | 0.81 | 0.76 | 0.68 | 0.64 | 0.70 | 0.67 | 0.59 | 0.55 | 0.49 | 0.45 | 0.37 | 0.33 | 0.28 |
| 5-9/16/16/P · h=50 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.85 | 0.12 | 0.20 | 0.24 | 0.57 | 0.68 | 0.77 | 0.94 | 0.98 | 0.98 | 0.98 | 0.99 | 0.93 | 0.87 | 0.78 | 0.71 | 0.66 | 0.57 | 0.59 |
| 6/16/16/P · 11,0 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.24 | 0.31 | 0.38 | 0.84 | 0.89 | 1.02 | 0.95 | 0.87 | 0.75 | 0.64 | 0.61 | 0.66 | 0.56 | 0.49 | 0.43 | 0.43 | 0.42 | 0.46 |
| 6/16/8/V · 22,0 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.85 | 0.22 | 0.31 | 0.45 | 0.86 | 0.89 | 1.04 | 0.97 | 0.93 | 0.84 | 0.75 | 0.75 | 0.79 | 0.79 | 0.80 | 0.86 | 0.84 | 0.90 | 0.93 |
| 6-10/16/16/P · h=100 mm · with 30 mm insulation · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.70 | 0.21 | 0.29 | 0.41 | 0.50 | 0.68 | 0.87 | 1.00 | 0.89 | 0.75 | 0.70 | 0.64 | 0.58 | 0.59 | 0.57 | 0.58 | 0.51 | 0.49 | 0.46 |
| 8/16/16/P · 19,6 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.80 | 0.24 | 0.29 | 0.42 | 0.84 | 0.94 | 0.98 | 0.93 | 0.82 | 0.74 | 0.67 | 0.69 | 0.75 | 0.74 | 0.77 | 0.77 | 0.78 | 0.83 | 0.90 |
| 8/32/32/P · 4,9 % · h=190 mm · 140/144 mm air gap · 20/16 mm material thickness, acoustic fleece, 30 mm insulation, 140/144 mm air gap | 0.40 | 0.30 | 0.46 | 0.52 | 0.66 | 0.60 | 0.55 | 0.47 | 0.37 | 0.34 | 0.28 | 0.28 | 0.28 | 0.27 | 0.27 | 0.31 | 0.30 | 0.34 | 0.44 |
Measured values as a table (20 measurements)
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References
Completed projects with AKUSTIbohr
Bad Ems · 2018





