Feature a combination of 1/2" and 1" MDF materials for superior isolation of bass; extruded aluminum bracing for minimal obstruction of airflow inside the enclosure; mass damping of front and back walls of enclosure; long-strand fiberglass internal damping for standing wave dissipation; dual positive and negative terminals for maximum wire connectivity; floating enclosure design minimizes vibration transfer to adjoining rooms; fits in standard 2x4 stud bay; blank pre-construction plate for easy installation