WHD UP 14-T6, 16 cm-2-Way (koax) Ceiling LS system. 40/50 W, 4 Ohm, 60-20.000 Hz, RAL 9016 white, 6W-Transformer. Incl. Mounting hardware for ceiling width 1 to 20 mm. dimensions: outside dia. 196mm, mounting depth 80mm, cutout 80mm, weight 1,2kg. NB Very good Bass reproduction and easy to mount.