Manufacturer
SONATECH GmbH + Co. KG
SONATECH is a southern German specialist for room acoustics and noise control, based in Ungerhausen (Bavaria). The company supplies acoustic solutions from a single source: consultancy, sound measurement, product and installation. The range spans the textile pure and pure+ ceiling and wall elements, the printable ConceptLine elements and QuietLine ceiling sails, Basotect and PUR foam absorbers, SkyLine acoustic columns and industrial solutions such as Cube, Baffel and MultiLane. The absorption values come from laboratory measurements based on the approach of DIN EN ISO 354. The materials are flame-retardant to DIN 4102 B1; for the Basotect foams, building-authority fire-protection test certificates are available.
Documents
SONATECH pure Ceiling Element Circle
pure Ceiling Element Circle
Description
The pure Ceiling Element Circle is a frameless, round ceiling raft. Free-hanging, it lowers the reverberation time, and a larger distance to the ceiling improves absorption in the lower frequency range.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 4 variants
Frequency values
Aobj per ISO 354 · octave band (m²)
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| Aobj | 0.23 | 0.70 | 0.87 | 1.17 | 1.37 | 1.37 |
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| Compare | Value | ||
|---|---|---|---|
| Ø 0 in | 11 in | Aobj1.17m² | |
| Ø 0 in | 0 in | Aobj0.97m² | |
| Ø 20 in | 11 in | Aobj0.35m² | |
| Ø 20 in | 0 in | Aobj0.32m² |
Measured values as a table (4 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| Ø 500 mm · 0 mm (Aobj, m²) | – | 0.02 | 0.07 | 0.19 | 0.32 | 0.33 | 0.28 |
| Ø 500 mm · 275 mm (Aobj, m²) | – | 0.03 | 0.15 | 0.23 | 0.35 | 0.42 | 0.42 |
| Ø 1.000 mm · 0 mm (Aobj, m²) | – | 0.10 | 0.30 | 0.67 | 0.97 | 0.97 | 0.87 |
| Ø 1.000 mm · 275 mm (Aobj, m²) | – | 0.23 | 0.70 | 0.87 | 1.17 | 1.37 | 1.37 |
Measured values as a table (4 measurements)
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