30-watt ceiling speakers supply quality sound for music + voice and all sound.
They are good for:
* Coverage: 15W hits about 20-30 sq meters per speaker at normal volume. Think office, restaurant, classroom, hotel hallway. Loud enough for music, not a party speaker.
* Sound: Tuned for speech clarity + background music. Bass is light since there’s no big enclosure. Mids/highs are clean.
* Power: 15W RMS means you can run 4-8 of them on a single 100W amplifier without stress. Most use 70V/100V line transformers for long wire runs.