Tag: absorber

  • Rockwool Acoustic Slab and Rockwool Flexi

    Rockwool specifies that 50mm Rockwool Flexi heat insulation slab has roughly the same absorbtion as 25mm Rockwool Acoustic Slab. They also manufacture a whole range of acoustic tiles in different shapes and forms, with NRC 0,5 at 125Hz.

  • Universal Acoustics Mercury Tiles

    Universal Acoustics foam tiles claims relatively average frequency absorbtion with NRC 0,85 and density of 30kg/m3.

  • Vicoustics MD55 Light and Cinema Round tiles

    Vicoustics foam tiles aren’t as good as other manufacturers, but they are a little more stylish. The 0,5 NRC Cinema Round tiles have a flat absorbtion above 500Hz, which is as expected. Interestingly, the MD55 Light tiles have a non-flat absorbtion. The absorbtion increases linearly with frequency. The NRC is 0,6 and density 30kg/m3.

  • Auralex Acoustics

    Auralex Acoustics makes a few foam panels of different thickness and colours. The 33kg/m3 100mm tiles has an NRC of 1,1 and a flat frequence absorbtion above 300Hz.

  • Hofa Absorber Tile

    Hofa Akustik makes some quite stylish absorbers and basstraps in a variety of colours. At 200Hz, the Basotect material used is claimed by BASF to absorb rougly 50% at 200Hz, and 100% at 500Hz. I’ve found material claiming both better and worse performance.

  • EQ Acoustic Wedge Tile

    Well-renowned EQ Acoustics manufactures some wedge absorbtion tiles with NRC 0,85, which makes them fairly average in performance. A few different colours are available as well. They also provide some larger, flat, tiles made out of quite dense 63kg/m3 fibreglass wool. The 50mm thick Spectrum 50L tiles are claimed to absorb 90% at 250Hz, which…

  • Adam Hall Acoustic Foam Absorber

    Adam Hall is a well-renowned manufacturer providing a medium density foam absorber at 23kg/m3.

  • Thomann t.akustik CBT-37 basstrap

    The Thomann t.akustik CBT-37 foam basstrap has no specification at all, but using a bathroom scale I estimate their density to roughly 20kg/m3. This makes them the lightest and cheapest traps I’ve found.

  • Thomann t.akustik HiLo, SA-N, SA-PA absorbers

    The Thomann t.akustik range of foam absorber tiles, are Thomann-branded, budget material. The only specification given for the HiLo tiles, is their density; At 16,5kg/m3, the material is the lightest material I’ve found, which I believe cases poor performance. It is the cheapest material, though, and probably better than nothing. They are available in different…