Mid/bass cinema loudspeaker's primary application is for use as a companion to the CS200H Mid/High enclosure in medium to large size theaters. The 15-inch long excursion, lightweight bass loudspeaker has been specifically designed to deliver high impact bass response. The magnetic structure incorporates a powerful neodymium magnet, reducing the total mass of the unit to less than 50% of a conventional ferrite model. The power capacity is improved by the use of a copper voice coil and a large vented magnetic structure. Functions as the Low frequency module for the System 100.