Description
The 70V/100V commercial ceiling speaker, these are in-ceiling speakers designed for distributed audio systems in places like offices, schools, hotels, restaurants, shops, and public-address (PA) installations.
They use a built-in transformer so many speakers can run in parallel over long cable distances.
Key specifications to look for
1. Voltage: 70V / 100V compatible (constant-voltage systems)
2. Speaker size: Commonly 4″, 6.5″, or 8″
3. Power taps: Selectable wattage (for example 3W, 6W, 10W, 15W, 30W) to balance coverage and amplifier load
4. Driver type:
Full-range speakers: good for announcements and background music
2-way/coaxial speakers: better music quality
5. Back can / fire rating: Important for commercial buildings and ceiling safety requirements
Sensitivity: Higher dB rating gives more output from less amplifier power
Typical applications
1. Retail stores
2. Restaurants and cafés
3. Hotels
4. Schools and churches
5. Offices
6. Airports and public facilities
Choosing the right one
1. Paging + background music: 4–6.5″ speaker, 5–15W tap
2. Higher-quality music: 6.5–8″ two-way speaker, higher watt taps
3. Large spaces: use more speakers at lower tap settings rather than fewer speakers pushed hard.
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