B11 Tower of Silence
Tower of Silence
Sabins/unit 31–41 at 1 kHz
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
The TOWER OF SILENCE brings calm where no wall or ceiling surface is free — a slender, all-round acoustic column that simply stands in the room and can be moved at any time. Depending on its cross-section it acts as a discreet companion or a deliberate design statement.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
Frequency values
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| Compare | Variant | Value |
|---|---|---|
| Variant 1 | Sabins/unit41 | |
| Variant 2 | Sabins/unit31 |
Test report: M10 3132/1
Institute: Müller-BBM GmbH, Planegg
Measurement date: 09/25/2012
Room volume: 7,049 cu ft
Dimensions: 1.3 × 1.3 × 6.6 ft (L × B × H)
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B11-TOWER OF SILENCE with Bespannung Nexus | Prüfung als Einzelabsorber; drei absorber frei on dem Hallraumboden aufgestellt, Abstand untereinander > 6.6 ft; Prüfung nacheinander an two Positionen | DIN EN ISO 354 | Prüfbericht M10 3132/1 (sabins/unit) | – | 14 | 18 | 22 | 32 | 36 | 39 | 40 | 41 | 42 | 41 | 41 | 40 | 39 | 39 | 38 | 38 | 38 | 38 |
| B11-TOWER OF SILENCE with Bespannung Nexus, Grundfläche 12 in | Prüfung als single object nach DIN EN ISO 354; drei Absorberelemente direkt on dem Hallraumboden aufgestellt; Prüfung nacheinander an drei unregelmäßig verteilten Positionen | DIN EN ISO 354 | Prüfbericht M103132/7 (sabins/unit) | – | 7.5 | 12 | 14 | 16 | 20 | 24 | 28 | 30 | 31 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 29 | 28 |
Measured values as a table (2 measurements)
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