CM 811 Flush Mount Ceiling Loudspeaker is designed for low ceiling
applications in a public address system. The unit consists of a
200 mm dynamic full range loudspeaker driver, capable of delivering
up to 104 dB of Sound Pressure Level (SPL). Coupled with the unit's
frequency response of 50 Hz ~ 20 kHz, it gives the unit excellent
speech and music reproduction properties.
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 10, 5 and 2.5 W (100 V line
system) / 5, 2.5 and 1.3 W (70 V line system)
loudspeaker driver unit is mounted onto an aesthetically pleasing
265 mm circular metal grille finished with a matted surface in Pure
White (RAL 9010). The whole unit is spring mounted to the ceiling
board without any visible screw mounting holes and more importantly
without any hassle.
is also a back enclosure model available (CM 811E). With the metal
back enclosure, crosstalk within the ceiling cavity can be prevented
while acoustic damping material lining the enclosure reduces echoing.