Rattles and vibration are not often speaker problems, they are vehicle acoustics problems. The most effective solution is sound treatment, and Focal’s BAM XXXL acoustic insulation is designed specifically for this purpose.BAM XXXL features a thin aluminium layer with acoustic foam backing and High-strength adhesive for secure installation. When installed correctly inside doors and panels, BAM XXXL reduces vibration, resonance, road noise and Improves mid-bass impact and clarity This allows your speakers and subwoofers to play louder and cleaner without unwanted noise.
https://focalaustralia.com.au/product-category/acoustic-insulation
