The unit’s built-in line matching transformer makes it suitable for a 70 V and 100 V distributed speaker system. Multiple power tappings on the transformer allows for outputs of 6, 3 and 1.5 W (100 V) / 3, 1.5 and 0.8 W (70 V).
The loudspeaker driver unit is mounted onto an aesthetically pleasing 200 mm circular metal grille finished with a matted surface in White . The whole unit is spring mounted to the ceiling board makes installation simple and effective without any visible screw mounting holes.
There is also a back enclosure model available (CM 561E). With the metal back enclosure, crosstalk within the ceiling cavity can be prevented while acoustic damping material lining the enclosure reduces echoing.