Acoustic IndexAcoustic Index

Bass Trap

Natural Acoustic Bass Trap

Sabins/unit 13–17 at 1 kHz

Freestanding
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Manufacturer

Natural Acoustic

Natural Acoustic

Natural Acoustic is a Tyrolean manufacturer of sound absorbers made from natural fibres, based in Mutters near Innsbruck. The main materials are sheep's wool, hemp, flax and wood fibre. The company provides reverberation measurement, planning and installation from a single source. The range includes acoustic panels, ceiling rafts and baffles made from hemp, hemp absorbers with flax fleece, sheep's wool and wood fibre absorbers, and the FRAMY frame absorbers for use as wall absorbers, room dividers or partitions. It also covers bass traps, wool room dividers, acoustic pictures and meeting pods. Areas of use are offices, hotels, restaurants and public buildings.

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Documents

Datasheet

Description

Column-shaped bass trap made of sheep wool and wood fibre for meeting rooms, glazed offices, rehearsal rooms, recording studios and home cinemas.

Technical data

Material: Spruce construction frame
Surface: Sewn cover of pure new wool (100 %) or wool with flax (75/25 %); covers available with flame-retardant finish to BS 7176 (medium hazard)
Fire class (EN 13501-1): E (EN 13501-1) for the absorber core
Certifications: Cover fabrics with EU Ecolabel and Indoor Air Quality Certified
Colors: More than 100 cover colours

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 2 variants

Sabins/unit
17
at 1 kHz

Frequency values

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CompareValue
Free-standing in the roomSabins/unit17
7.9 in out of the room cornerSabins/unit13

Institute: Acoustics laboratory of Fuchs Raumingenieure, Nuremberg

Measurement date: 08/28/2024

Room volume: 13,829 cu ft

Test setup: Free-standing in the room

Terms of use
Measured values as a table (2 measurements)
Bass Trap: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upNRC100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
Free-standing in the room (sabins/unit)–6.59.711141517171716171717171717171719
7.9 in out of the room corner (sabins/unit)–131613151413151514121414131414141414
Measured values as a table (2 measurements)

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