Kramer Galil 6-C 6.5-Inch Two Way Closed-Back Ceiling Speakers with 8 Ohm Impedance (Pair)The Kramer Galil 6 C 6. 5 Inch 2 Way Closed Back Ceiling Speakers are designed to deliver consistent audio performance in various installations. They feature a coaxial design, a multi tap transformer, and a closed back structure to meet commercial audio needs. 2 Way Coaxial Design Equipped with a 6. 5 inch polypropylene cone woofer and a 0. 5 inch Mylar dome tweeter, the 2 way coaxial design delivers balanced sound across low and high frequencies.