A closed back makes the steel chassis TF0615MR a dedicated mid-range PA speaker, eliminating the need for a separate mid-range enclosure when dropped into a 3-way cabinet. Optimised to deliver detailed reproduction of mid-range frequencies from 500 Hz to 5000 Hz, this 6” diameter speaker provides 100 W continuous power handling (50 W RMS AES standard) and 97 dB sensitivity. Closed back midrange unit.