- For use with both 2 ft. x 2 ft. and 2 ft. x 4 ft. suspended tile ceilings (support rail crossbar included for 2 ft. x 4 ft. suspended tile ceilings)- Finely perforated grille covers entire front of speaker- Fully enclosed industrial grade steel construction- Self-contained 1-watt amplifier- 8 main cone speaker with secondary cone- Front-mounted recessed volume control- Non-reflective finish off-white- Seismic attachment points- Plenum-Rated; Complies with UL-2043