A closed back makes the steel chassis TF0818MR 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 800 Hz to 5000 Hz, this 8” diameter speaker provides 200 W continuous power handling (100 W RMS AES standard) and 99 dB sensitivity. Closed back midrange unit.