The CX 811 and CX 811E Flush Mount 2-Way Coaxial Ceiling Loudspeaker are designed for high ceiling applications in a public address system where directive sound projection is required. The unit consists of a 200 mm 2-way coaxial speaker driver, capable of delivering up to 106 dB of Sound Pressure Level (SPL). Coupled with the unit’s frequency response of 64 Hz ~ 20 kHz (CX 811) / 85 Hz ~ 20 kHz (CX 811E), it gives the units excellent speech and music reproduction properties.

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 10, 5 and 2.5 W (100 V line system) or 5, 2.5 and 1.3 W (70 V line system).

The 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.

The CX 811E features a metal black enclosure which prevents crosstalk helps eliminate crosstalk within the ceiling cavity, while acoustic damping material lining the enclosure reduces echoing.