The Alberich tile is specifically designed as an acoustic absorber for underwater applications. Engineered to optimize sound absorption in the 5 kHz to 20 kHz frequency range, it boasts an insertion loss of 25 dB at 10 kHz and an echo reduction of 15 dB. Measuring 600 mm x 300 mm x 85 mm and weighing 31 kg, this tile is intended for environments where precise control of low-frequency acoustic waves is critical. Its construction suits various underwater uses, ensuring efficient sound management in marine acoustics and sub-aquatic noise reduction.