The ARCO GRILLE CMS 503 provides unobtrusive concealment of CMS 503 Series loudspeaker installations in architecturally sensitive environments such as museums, art galleries, and restaurants, etc. The magnetically-secured semi matt black steel mesh grille includes dust protection and an ABS trim ring and can be custom painted on site to blend seamlessly with the surrounding décor. Ultra-easy to install, the ARCO GRILLE CMS 503 can be used for all CMS 503 Series loudspeakers, with the exception of the CMS 503 LP, which uses the ARCO GRILLE CMS 603.