Overview
 
Trim rings allow installation of Control Contractor ceiling speakers into existing ceiling Loudspeakers (and other electroacoustic transducers) are the most variable elements in a modern audio system and are usually responsible for most distortion and audible differences when comparing sound systems.] cssheader=[boxoverheader] cssbody=[boxoverbody]">speaker cutouts that are larger than the Loudspeakers (and other electroacoustic transducers) are the most variable elements in a modern audio system and are usually responsible for most distortion and audible differences when comparing sound systems.] cssheader=[boxoverheader] cssbody=[boxoverbody]">speaker's normal cutout size. The maximum cutout size accommodated depends on the installation configuration.

MTC-24TR for Models Control 24C and Control 24CT into cutouts up to 250mm (10 in) diameter.