Professional ceiling speaker 20 watt 18 cm trans

NA-1830 Specifications: Call speaker the latest and the most beautiful ceiling operates with two systems: ohm and transformer with 20 watts on the transformer system and 30 watts on the ohm system. The speaker is unique and very suitable for those who want deep and strong bass in the ceiling speaker, beautiful and very suitable for shops, stores, halls, and meeting rooms. Technical specifications: operates with two systems: 100 volts - 8 ohms. Sound intensity: 99 decibels. Frequency response: 20,000 – 90,000 hertz. Outer surface diameter: 20.5 cm. Ceiling opening diameter: 18 cm. Net weight: 2.5 kg.