Absorber Rondo Cylindrical Absorber
Fural Soft Akustik Absorber Rondo
Manufacturer
Fural Soft Akustik
Fural Soft Akustik is Fural's brand for sound absorbers: ceiling rafts, baffles, acoustic panels, wall absorbers, inserts for grid ceilings and the seamless acoustic plaster phonestop V, mostly made of melamine resin foam and PET. The products come from the former pinta acoustic, whose machines, test reports and many employees Fural took over.
Description
Absorber Rondo is a cylindrical absorber made of melamine foam (Basotect) that hangs horizontally or vertically, depending on the version. For T-24 exposed grid systems there is Rondo T, with a T-slot along the side or in the end face, and a version with an aluminium tube through the core; for steel cables there is Rondo S, with a carrier profile and two hooks or with a spiral spring fitted to the end face. It is used in tall spaces such as reception halls and stadiums, as well as in offices and meeting rooms, canteens, event spaces, production facilities, swimming pools, schools and nurseries.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 12 variants
Frequency values
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| Compare | Value | ||||
|---|---|---|---|---|---|
| Ø 9.1 in | 16 in axis spacing | 70 in suspension height | Rondo S | — | |
| Ø 9.1 in | 24 in axis spacing | 70 in suspension height | Rondo S | — | |
| Ø 9.1 in | 28 in axis spacing | 70 in suspension height | Rondo S | — | |
| Ø 5.9 in | 16 in axis spacing | 73 in suspension height | Rondo S | — | |
| Ø 5.9 in | 24 in axis spacing | 73 in suspension height | Rondo S | — | |
| Ø 5.9 in | 28 in axis spacing | 73 in suspension height | Rondo S | — | |
| Ø 9.1 in | 16 in axis spacing | 30 in suspension height | Rondo T | — | |
| Ø 9.1 in | 24 in axis spacing | 30 in suspension height | Rondo T | — | |
| Ø 9.1 in | 28 in axis spacing | 30 in suspension height | Rondo T | — | |
| Ø 5.9 in | 16 in axis spacing | 73 in suspension height | Rondo T | — | |
| Ø 5.9 in | 24 in axis spacing | 73 in suspension height | Rondo T | — | |
| Ø 5.9 in | 28 in axis spacing | 73 in suspension height | Rondo T | — |
Test report: 1039-003-06
Institute: SG Bauakustik
Measurement date: 04/05/2006
Dimensions: 49 in long
Test setup: Rondo S
Measured values as a table (12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ø 9.1 in · 16 in axis spacing · 70 in suspension height · Rondo S | – | 0.34 | 0.40 | 0.53 | 0.65 | 0.83 | 1.11 | 1.16 | 1.20 | 1.31 | 1.38 | 1.45 | 1.52 | 1.47 | 1.55 | 1.55 | 1.55 | 1.43 | 1.37 |
| Ø 9.1 in · 24 in axis spacing · 70 in suspension height · Rondo S | – | 0.26 | 0.30 | 0.39 | 0.45 | 0.61 | 0.77 | 0.88 | 1.00 | 1.19 | 1.19 | 1.22 | 1.23 | 1.23 | 1.27 | 1.20 | 1.17 | 1.12 | 1.13 |
| Ø 9.1 in · 28 in axis spacing · 70 in suspension height · Rondo S | – | 0.20 | 0.24 | 0.29 | 0.36 | 0.51 | 0.69 | 0.78 | 0.88 | 0.97 | 1.04 | 1.07 | 1.09 | 1.04 | 1.05 | 1.02 | 1.05 | 1.01 | 0.95 |
| Ø 5.9 in · 16 in axis spacing · 73 in suspension height · Rondo S | – | 0.13 | 0.15 | 0.12 | 0.15 | 0.19 | 0.24 | 0.50 | 0.61 | 0.79 | 0.77 | 0.78 | 0.84 | 0.86 | 0.87 | 0.86 | 0.87 | 0.84 | 0.85 |
| Ø 5.9 in · 24 in axis spacing · 73 in suspension height · Rondo S | – | 0.09 | 0.11 | 0.14 | 0.16 | 0.17 | 0.22 | 0.39 | 0.49 | 0.61 | 0.62 | 0.68 | 0.68 | 0.69 | 0.70 | 0.70 | 0.71 | 0.70 | 0.72 |
| Ø 5.9 in · 28 in axis spacing · 73 in suspension height · Rondo S | – | 0.06 | 0.07 | 0.05 | 0.11 | 0.13 | 0.18 | 0.30 | 0.38 | 0.50 | 0.55 | 0.61 | 0.62 | 0.62 | 0.64 | 0.62 | 0.63 | 0.64 | 0.62 |
| Ø 9.1 in · 16 in axis spacing · 30 in suspension height · Rondo T | – | 0.39 | 0.33 | 0.33 | 0.46 | 0.69 | 0.85 | 0.87 | 0.95 | 0.92 | 0.94 | 0.94 | 0.85 | 0.88 | 0.86 | 0.92 | 0.85 | 0.89 | 0.93 |
| Ø 9.1 in · 24 in axis spacing · 30 in suspension height · Rondo T | – | 0.36 | 0.20 | 0.23 | 0.41 | 0.60 | 0.71 | 0.79 | 0.85 | 0.85 | 0.85 | 0.82 | 0.79 | 0.82 | 0.79 | 0.81 | 0.79 | 0.78 | 0.76 |
| Ø 9.1 in · 28 in axis spacing · 30 in suspension height · Rondo T | – | 0.23 | 0.19 | 0.19 | 0.39 | 0.49 | 0.59 | 0.68 | 0.81 | 0.79 | 0.75 | 0.72 | 0.75 | 0.72 | 0.72 | 0.74 | 0.71 | 0.72 | 0.66 |
| Ø 5.9 in · 16 in axis spacing · 73 in suspension height · Rondo T | – | 0.13 | 0.14 | 0.12 | 0.15 | 0.20 | 0.23 | 0.49 | 0.59 | 0.82 | 0.82 | 0.88 | 0.84 | 0.88 | 0.86 | 0.90 | 0.91 | 0.90 | 0.92 |
| Ø 5.9 in · 24 in axis spacing · 73 in suspension height · Rondo T | – | 0.14 | 0.13 | 0.11 | 0.16 | 0.18 | 0.23 | 0.36 | 0.49 | 0.60 | 0.60 | 0.67 | 0.68 | 0.69 | 0.71 | 0.69 | 0.70 | 0.72 | 0.71 |
| Ø 5.9 in · 28 in axis spacing · 73 in suspension height · Rondo T | – | 0.11 | 0.10 | 0.07 | 0.13 | 0.16 | 0.18 | 0.36 | 0.42 | 0.53 | 0.51 | 0.58 | 0.60 | 0.62 | 0.61 | 0.60 | 0.62 | 0.63 | 0.61 |
Measured values as a table (12 measurements)
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