2-way coaxial chassis with a 20 cm woofer (8") and a 4 cm silk dome (1.5"). Simplest installation due to direct support on the ceiling. Suitable for suspended cassette ceilings with a 60 x 60 cm grid - cutting of ceiling tile necessary. For 8-ohm and 100 V systems. 4-stage power changeover switch. Metal fire protection pot for safety in case of fire.