Soundblox® - Low Frequency
Soundblox Low Frequency Acoustical Masonry Units have been specifically designed for low frequency absorption.
Soundblox Type Q
Soundblox type Q units have flared slots which are the same width as the A1 units on the outer face. Metal septa is place in unfilled cavities. They are specially designed for low frequency absorption, optimum sound absorption is achieved at 125 hz.