B11 Archisonic Felt
Archisonic Felt
NRC 0.45–1.00
Manufacturer
B11
B11 develops and manufactures lightweight, free-standing and suspended room-acoustic objects in Edling, Bavaria. Founded in 2011 by Dirk Huber, the brand stands for distinctive, design-led acoustic solutions „made in Bavaria“. The core range is based on melamine resin foam (Basotect) with a textile cover (Camira Nexus/Lucia): the TOWER OF SILENCE acoustic column, the CUBE, the square WING, the rotatable ROTARY WALL and the suspended FLYING WALL room divider. B11 also offers a PET line made from recycled ARCHISONIC Felt (Impact Acoustic) and the through-dyed WING UNICOLOR. Sound absorption is documented per product — via accredited measurements (Müller-BBM, University of Stuttgart) or manufacturer data sheets; free-standing single objects as the equivalent absorption area A per object.
Documents
Description
ARCHISONIC FELT is B11's sustainable PET platform — an acoustic felt of recycled polyester used as wall lining, ceiling surface or free form. It combines tangible acoustics with a warm, textile feel and a considered circular footprint from fibre to disassembly.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 11 variants
Choose thickness
Frequency values
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| Compare | Value | |
|---|---|---|
| with 1.6 in insulation | NRC0.95 | |
| with 2 in insulation | NRC0.85 | |
| with 2 in cavity | NRC0.50 | |
| mounted directly (without cavity) | NRC0.45 |
NRC: 0.95 (approximated from ISO 354 octave-band data)
Institute: University of Stuttgart, Institute for Acoustics and Building Physics (IABP)
Test setup: with 1.6 in insulation
Measured values as a table (11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.94 in · mounted directly (without cavity) | 0.70 | 0.10 | 0.02 | 0.08 | 0.18 | 0.22 | 0.32 | 0.44 | 0.54 | 0.68 | 0.82 | 0.95 | 1.00 | 1.03 | 1.10 | 1.09 | 1.09 | 1.09 | 1.14 |
| 0.94 in · with 1.6 in insulation | 0.90 | – | 0.45 | – | – | 0.70 | – | – | 0.90 | – | – | 0.95 | – | – | 0.95 | – | – | 0.95 | – |
| 0.94 in · with 2 in insulation | 1.00 | – | 0.40 | – | – | 0.90 | – | – | 1.00 | – | – | 1.00 | – | – | 1.00 | – | – | 1.00 | – |
| 0.94 in · with 2 in cavity | 0.80 | 0.19 | 0.09 | 0.14 | 0.25 | 0.37 | 0.48 | 0.62 | 0.78 | 0.89 | 0.94 | 1.03 | 1.01 | 1.00 | 0.99 | 0.99 | 1.02 | 1.04 | 1.06 |
| 0.94 in · with 3.9 in cavity | 0.90 | 0.19 | 0.21 | 0.27 | 0.46 | 0.71 | 0.72 | 0.80 | 0.88 | 0.97 | 0.99 | 1.02 | 1.01 | 0.96 | 0.96 | 0.99 | 1.03 | 1.06 | 1.05 |
| 0.94 in · with 7.9 in cavity | 0.90 | 0.43 | 0.61 | 0.64 | 0.80 | 0.85 | 0.85 | 0.89 | 0.93 | 0.94 | 0.93 | 0.90 | 0.94 | 1.00 | 0.99 | 1.01 | 1.04 | 1.05 | 1.08 |
| 0.94 in · with 12 in cavity | 0.95 | 0.34 | 0.83 | 0.97 | 0.80 | 0.83 | 0.88 | 0.80 | 0.86 | 0.82 | 0.90 | 1.00 | 0.92 | 1.01 | 1.02 | 1.02 | 1.04 | 1.06 | 1.06 |
| 0.47 in · mounted directly (without cavity) | 0.45 | – | 0.05 | – | – | 0.05 | – | – | 0.25 | – | – | 0.55 | – | – | 0.85 | – | – | 1.05 | – |
| 0.47 in · with 1.6 in insulation | 0.95 | – | 0.30 | – | – | 0.85 | – | – | 1.00 | – | – | 1.00 | – | – | 1.00 | – | – | 1.00 | – |
| 0.47 in · with 2 in insulation | 0.85 | – | 0.40 | – | – | 0.65 | – | – | 0.85 | – | – | 0.95 | – | – | 0.95 | – | – | 0.95 | – |
| 0.47 in · with 2 in cavity | 0.50 | – | 0.05 | – | – | 0.15 | – | – | 0.40 | – | – | 0.70 | – | – | 0.80 | – | – | 0.75 | – |
Measured values as a table (11 measurements)
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