- Finely perforated grille over the entire front of speaker - Fully enclosed industrial grade steel construction - Enclosed Back Can - 8inch main cone with secondary high-frequency cone - Low-impedance: 8-ohm speaker 15W max. power - Seismic attachment points - Complies with Requirements of UL-2043 - Support Rail Crossbar (included) - Available in Off-white and Bright White (inchUinch versions) grille finish