Description
Clear Voice Paging for Indoor & Outdoor Commercial Areas
The TOA SC-615T is a compact 15W weather-resistant paging horn speaker designed for clear voice announcements, general paging and public-address applications. Its high-efficiency horn design helps project speech into areas where conventional ceiling or wall speakers may not provide enough direct coverage.
With an IP65 weather-resistant construction and built-in 25V/70V transformer, the SC-615T is well suited to warehouses, loading areas, factories, schools, parking areas, workshops and other commercial or industrial locations.
Where the SC-615T Works Best
The SC-615T is primarily designed for speech and paging. Its horn pattern concentrates sound toward the listening area, making it useful when announcements need to remain understandable over distance or through moderate workplace noise.
Choosing the Right 70V Power Tap
The SC-615T includes multiple transformer taps. The selected tap determines how much amplifier power each horn uses. This allows several speakers to operate from one compatible 70V amplifier while matching output level to each coverage area.
| 70V Tap | Impedance | Practical Use |
|---|---|---|
| 15W | 330Ω | Maximum speaker output for larger or noisier paging areas |
| 7.5W | 650Ω | Moderate paging level where full output is not required |
| 3.8W | 1.3kΩ | Lower-level paging or closer speaker spacing |
Matching the SC-615T to a Paging Amplifier
Add the wattage tap of every speaker connected to the same amplifier. The total connected speaker load should remain below the amplifier's usable output capacity.
| Speaker Quantity | Tap Setting | Total Load |
|---|---|---|
| 1 | 15W | 15W |
| 2 | 15W each | 30W |
| 4 | 15W each | 60W |
| 4 | 7.5W each | 30W |
Speaker quantity alone does not determine amplifier size. Always calculate the combined wattage of the selected transformer taps and allow suitable amplifier capacity for the installation.
Paging Horn or Music Speaker?
Choose the SC-615T when the main requirement is clear voice paging, announcements or signalling. Horn speakers are designed to project speech efficiently and directionally.
If the main goal is full-range background music, consider a commercial ceiling, wall-mount, pendant or music-horn speaker instead. This helps match the speaker design to the actual sound requirement rather than choosing only by wattage.
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Technical Specifications
| Brand | TOA |
| Model / SKU | SC-615T |
| Product Type | Weather-resistant paging horn speaker |
| Rated Input | 15W |
| Speaker Line | 25V / 70V |
| 70V Taps | 15W / 7.5W / 3.8W |
| 70V Impedance | 330Ω / 650Ω / 1.3kΩ |
| 25V Taps | 15W / 7.5W / 1.9W / 1W / 0.5W |
| 25V Impedance | 42Ω / 83Ω / 330Ω / 650Ω / 1.3kΩ |
| Sensitivity | 112 dB (1W / 1m) |
| Frequency Response | 280 Hz – 12.5 kHz |
| Weather Protection | IP65 |
| Operating Temperature | -20°C to +55°C |
| Horn Construction | Powder-coated aluminum |
| Mounting Bracket / Bolts | Stainless steel |
| Connection Cable | Approx. 600 mm PVC-insulated cable |
| Dimensions | 222 × 179 × 234 mm (W × H × D) |
| Weight | Approx. 1.3 kg |
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