The Tessen TNi-C4 delivers premium audio reinforcement. Designed with the installer in mind, The TNi-C4 – 4 inch coaxial ceiling speaker - features a 6 position power tap selector located under the front steel grille, providing swift output adjustment once installed. With connectivity for 70V/100V and 8 ohm low impedance lines, The TNi-C4 delivers a highly flexible solution. The spring connection terminals ensure cables are secure once fitted.