The CIS400 is a complete two-way bass-reflex flush-mount loudspeaker assembly designed for fixed installations into typical ceiling plenum spaces. Employing a unique HF waveguide design based on the Mackie HR824 studio monitors, the CIS400 delivers superior dispersion and pattern control over conventional coaxial designs. The waveguide integrates the HF driver with a 6.5” LF driver optimized for smooth frequency response and seamless transition through the crossover point. The CIS400 is supplied fully assembled, complete with a sealed zinc-coated steel backcan and cam-style installation clamps. The metal enclosure includes a recessed Euroblock input connector with detachable mating plug, concealed behind a hinged metal cover plate. A welded tab is provided for seismic restraint. Two steel T-bar support channels are provided to facilitate installation to a standard tile ceiling. Also supplied is a steel split C-ring, which serves to disperse the clamping pressure of the mounting cams.
