The ELK-73 is a 20 Watt, 8 Ohm Speaker mounted in an attractive surface mount plastic enclosure. This versatile Echo Series speaker is designed to be heard but not seen!. Sound "echoes" off mounting surface from back plate edge. This unique contemporary speaker has a smooth, paintable, "no grill" surface that easily blends with any decor. This speaker mounts to any flat surface or single gang electrical "J" box.