Use AtlasIED 194 Series protective enclosures for recessed or surface mounting of 830 Series clock/speaker baffles. The 194 Series models contain 12 triple-compound conduit knockouts (six on both top and bottom) to facilitate easy wiring, 195 Series has 12 knockouts (four on both top and bottom, two at each end). Enclosures are constructed of 20-gauge CRS and are heavily undercoated to prevent mechanical resonances. Units contain a compartment divider to separate high and low voltage wiring. Models for surface application include an (SM) prefix and are finished in textured white epoxy to match the clock/speaker baffle panel.