Hi-fi wall and ceiling speaker, 15 W. 100 V transmission technology or 8 Ω operation. Power taps: 100 V (8/4/2/1 W). 2-way version with coaxial dome tweeter. 10 cm (4") bass speaker with waveguide and 20 mm (3/4") silk dome. Excellent sound characteristics. Supplied with 2 stylish protective metal grilles for an individual look. Protective grille to be magnetically attached. For a wall thickness/ceiling thickness from 8 to 30 mm.