As with 4″ Studiofoam Wedges, 4″ Studiofoam Pyramids are recommended for larger spaces, rooms with pronounced low frequency problems or where sonic accuracy is mandatory and stronger acoustic absorption is required.
4″ Studiofoam Pyramids provide 3x the low-end control of 2″ and can effectively tame even the worst sonic anomalies. In some instances, using 4″ acoustic Studiofoam can lessen the need for significant dedicated bass trapping.