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Sonic System acoustic modular panel-V225

The Sonic System acoustic modular panel V225 is engineered to provide simultaneous sound attenuation and sound absorption within a single panel system, making it suitable for infrastructure noise walls, plant screening, and industrial acoustic enclosures.

The panel incorporates a central 1.0mm solid steel barrier sheet between two Rockwool absorptive layers, behind perforated steel faces on both sides, enabling the system to reduce transmitted noise while controlling reflected sound energy within enclosed or semi-enclosed environments. Sound absorption is measured to AS ISO 354 and airborne sound transmission loss to AS 1191-2002, with Rw determined to AS/NZS ISO 717.1. The panel achieves NRC 0.80 and Rw (C;Ctr) 24 (0;−3), with transmission loss exceeding 45dB from 4000 Hz.

The V225 is suited to external noise barriers and acoustic wall systems where combined absorption and barrier performance are required within a single construction.

Product Properties Test Data Technical Information

  • Product name:

    AcousTech Sonic System acoustic modular panel V225

  • Construction:

    50mm panel, perforated steel both faces at 38% open area, Rockwool core at 70 kg/m³, with central 1.0mm solid steel barrier sheet

  • Finish:

    Pre-painted steel, perforated both faces, pre-finished ‘off-white’ or custom colour

  • Acoustic performance:

    Rw (C;Ctr) 24 (0;−3) dB determined to AS/NZS ISO 717.1 | NRC 0.80

  • Fire resistance:

    FRL -/120/- to AS 1530.4-2014

Absorption
1/3 Octave Centre Frequency, Hz Average RT for empty room, T60e Average RT for room with sample, T60e+s Sound Absorption Coefficient ⍺s 95% Confidence Interval for ⍺s
100 7.145 5.653 0.30 0.14
125 6.508 5.074 0.35 0.10
160 8.395 4.602 0.80 0.12
200 9.319 5.338 0.65 0.08
250 9.351 5.470 0.62 0.06
315 7.830 5.066 0.56 0.06
400 7.055 4.705 0.57 0.05
500 6.682 4.149 0.74 0.06
630 6.299 3.818 0.84 0.06
800 6.210 3.652 0.92 0.05
1000 5.589 3.415 0.93 0.06
1250 5.122 3.194 0.96 0.04
1600 4.550 2.962 0.96 0.03
2000 4.085 2.729 0.98 0.05
2500 3.622 2.493 1.00 0.04
3150 3.121 2.244 1.00 0.05
4000 2.576 1.942 0.99 0.06
5000 2.193 1.700 1.01 0.12
Sound transmission loss
1/3 Octave Centre Frequency Hz Sound Transmission Loss: R (dB) Rw 24 Reference Curve 95% Confidence levels, dB
100 14.0 5 2.8
125 13.4 8 2.6
160 13.7 11 1.6
200 14.4 14 2.2
250 15.3 17 0.9
315 16.3 20 1.5
400 16.9 23 0.7
500 18.7 24 0.9
630 20.6 25 0.6
800 22.8 26 0.9
1000 26.6 27 0.7
1250 29.6 28 0.7
1600 33.3 28 0.6
2000 37.6 28 0.7
2500 41.5 28 0.5
3150 45.0 28 0.6
4000 48.2 – 0.7
5000 49.3 – 0.8
Wind load
Panel Support Centres (m) Maximum Ultimate Wind Load Pressure (kPa)
4.0m 2.58 kPa
4.5m 2.04 kPa
5.0m 1.65 kPa
5.5m 1.36 kPa
6.0m 1.15 kPa

Ultimate wind load pressures to AS/NZS 1170.2. Minimum 100×6.0 SHS required at each end of a panel assembly. Not applicable to cyclonic wind regions. Load test data and engineering assessment available on request.

  • AcousTech Sonic System acoustic modular panel V225 datasheet PDF
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  • AcousTech Sonic System acoustic modular panel - Information pack PDF
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  • AcousTech Sonic System acoustic modular panel V225 - Attenuation - Test results PDF
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  • AcousTech Sonic System acoustic modular panel V225 - Absorption - Test results PDF
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  • AcousTech Sonic System acoustic modular panel V225 - Line drawing PDF
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  • AcousTech Sonic System acoustic modular panel V225 - DWG DWG
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  • AcousTech Sonic System acoustic modular panel V225 - REVIT RVT
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