Bogen CSD1X2/U Drop-In Ceiling Speaker with Back CanPriced individually, but sold in pairs. Bogen's CSD1X2 Drop In Ceiling Speakers are 1' X 2' speakers that allow for fast and easy installation. Just make one simple cut to the ceiling tile, lay the support rail crossbar (included) across the ceiling grid, and drop the speaker into place. Features: Finely perforated grille over the entire front of speaker Fully enclosed, industrial grade steel construction Enclosed Back Can 8'' main cone with secondary