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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.
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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.
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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…
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Adam Hall is a well-renowned manufacturer providing a medium density foam absorber at 23kg/m3.
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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.
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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…
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Finding technical specifications on commercial material turned out to be hard. Not all manufacturers provide specifications, and for those who do, it is not always comparable to other manufactures. I’ve tried to compile specifications from the most common manufacturers. There are a number of variables that can be used. As I’ve read in several articles…
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The Roland TD-11K entry-level kit ships with 2 cymbals, but – as I’ve shown in a previous article – it can easily be extended with a third cymbal. However, there are some gems in the TD-11 that allows it to add a fourth and fifth cymbal. In an earlier post, I’ve shown how to configure…
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In my previous post, I described how to add a second crash cymbal to a Roland TD-11K kit. Now, being a rock drummer, there can never be too much cowbell in a song. But all inputs are already occupied! In this article, I describe how to add a secondary sound to an input. The Roland…
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Expanding an entry-level electronic drum kit is hard, but not impossible using creative thinking. In a series of articles I will describe how to convert a Roland TD-11 kit into a Neil Peart sized kit. I’m a hobby drummer since several years, having owned three different kits. My first kit was a used Pearl Mapex…