The Pyle PSI04 is a sound dampening speaker riser designed to help achieve optimal audio performance. Made with high-density engineered foam, this speaker platform reduces vibration and unwanted audio resonance, allowing for cleaner and more accurate sound. It promotes sound isolation and bass recoil absorption, ensuring your audio frequencies flow freely with enhanced bass clarity. The integrated steel top-plate offers added stability, while the anti-slip rubber speaker base pad keeps the speaker securely in place. This riser works with a variety of speakers, including studio monitors, subwoofers, loudspeakers, and shelf speakers—making it an excellent choice for both on-stage and in-studio use.