£675.00
Description
Product Specification:
- 5.5ft tall Acoustic back panels
- Material: Fiberglass with cloth cover
- Perfect for use at rear of 5ft and 6ft screens
- Panels join together with velcro
- Fire tested
- Specification below
- Panel size: 1675mm x 610mm
4 Drum Screen Acoustic Back Panels: £675
Carriage: £75
Delivery Time: 3 to 7 working days
Acoustic Specifications:
Acoustic Panel NRC ratings
The Noise Reduction Coefficient (NRC) is a single-number index determined in a lab test and used for rating how absorptive a particular material is. This industry standard ranges from zero (perfectly reflective) to 1 (perfectly absorptive). It is simply the average of the mid-frequency sound absorption coefficients (250, 500, 1000 and 2000 Hertz) rounded to the nearest 5%.
frequency (Hz) | 125 | 250 | 500 | 1,000 | 2,000 | 4,000 | Overall |
Noise Reduction Coefficient (NRC) | 0.13 | 0.58 | 1.01 | 1.05 | 1.00 | 1.01 | 0.90 |
Based on the testing methodology, and depending upon the material’s shape or surface area, some products can test at an NRC above 1.
Acoustic Panel noise reduction
frequency (Hz) | 100 | 1,000 | 10,000 |
attenuation (dB) | 7 | 13 | 28 |