The S 102 are modular rectangular elements made of two parts precast then assembled.
The sound-absorbing material is made of textile fiber.
The Alfakel Series S 102 baffles are designed for absorptive silencers. Because they are modular, these elements can be assembled to reach the desired size of silencer for the specific sound-absorbing needs.
Assembling or stacking together more modules will achieve the acoustic and aerodynamic features desired.