Ceiling speaker, 4″, 6 W RMS (6 & 3 W), 100 V, 140 mm Ø, spring catches. Rear enclosure

Ceiling speaker, two-way (6.5″+0.75”), 20 W RMS (20, 10 & 5 W) @ 100 V | 40 W @ 8 Ω. 227 mm Ø

Ceiling speaker, 4″, 6 W RMS (6, 3 & 1,5 W), 100 V & 8 ohm, 140 mm Ø, IP55. Rear enclosure