"Reduce low frequency and ultra-low frequency" RASK soundproof door
Soundproof door that reduces ultra-low frequency and low frequency! Suitable for tunnel blasting construction.
Using vibration reduction technology with porous cast iron RASK, we enhance the vibration control of conventional soundproof doors and significantly improve their sound insulation performance. It is capable of blocking ultra-low frequency sounds. In a nearby residential area, where blasting excavation noise reached around [87 dB] with standard soundproof doors, the introduction of RASK soundproof doors resulted in a reduction to [57 dB]. Since then, there have been about 27 instances of RASK soundproof doors being used in public works, demonstrating their effectiveness when needed.
- 企業：スイサク
- 価格：Other
