The B-18 is a general purpose subwoofer for extending the response of any sound reinforcement system. Within our range of speaker it’s the ideal companion for the T-1214 speaker. The loudspeaker is actively driven by its dedicated amplifier channel and features a high performance, long stroke 18″ ferrite woofer with a 4″ voice coil. Large-dimensioned bass reflex ports in a symmetrical setup secure low power compression at high SPL and avoid tumbling of the speaker membrane. The cabinet is built from 18 mm marine plywood with a high resistant black finish. It incorporates a pair of handles and one flange for mounting a standard M20 threaded loudspeaker pole.