The Ahuja UHC-30XT is engineered specifically for integration into 100V constant-voltage public address, paging, and voice notification architectures. Designed for distributed audio networks in industrial plants, warehouses, perimeter fences, and open yard facilities, the horn speaker utilizes a built-in line matching transformer that enables long cable runs across large physical footprints without significant signal degradation or transmission line power loss.
Constant-Voltage 100V Amplifier Interfacing
The UHC-30XT is directly compatible with all commercial and industrial PA mixer-amplifiers, power amplifiers, and zone selectors providing a standard 100V loudspeaker line output. Speakers on a 100V distributed network are wired strictly in parallel line topology. This parallel configuration allows audio system engineers to connect multiple UHC-30XT units across a single amplifier channel, provided the aggregate wattage tapped across all connected speakers remains within the rated output capacity of the driving amplifier.
Connecting the UHC-30XT directly to low-impedance (4Ω or 8Ω) amplifier outputs must be avoided. Operating 100V transformer-equipped speakers across low-impedance terminals causes impedance mismatches, driver transformer saturation, and severely attenuated acoustic output.
Power Tapping & Impedance Compatibility Matrix
System integrators can balance sound pressure levels across distinct facility zones using the sealed multi-position rotary switch on the rear housing. Wattage adjustment is completed externally without opening the weather-proof horn enclosure. The selectable power taps and corresponding primary impedance values are structured as follows:
| Power Tap (100V Line) | Primary Impedance (Ω) | Output Performance & Application Zone |
|---|---|---|
| 30W (RMS Maximum) | 330 Ω | Full 123 dB SPL output (at 1m) for high-noise industrial fabrication yards and plant perimeters. |
| 25W | 400 Ω | High acoustic output for expansive outdoor staging areas and heavy warehousing. |
| 20W | 500 Ω | Intermediate power level for large distribution bays and loading docks. |
| 15W | 670 Ω | Balanced level for medium-noise assembly areas and storage facilities. |
| 10W | 1,000 Ω (1 kΩ) | Standard paging coverage for general circulation pathways and wide corridors. |
| 5W | 2,000 Ω (2 kΩ) | Low-noise boundary zones, gatehouses, and controlled indoor facilities. |
Cabling & Field Connection Interface
The unit comes pre-wired with a 0.6 m (2 ft) length of 2-core sheathed speaker cable entering the rear enclosure via a factory-sealed, water-tight, tug-proof cable gland. For connection into main plant field cabling, the 2-core tail should terminate into an external IP-rated junction box or terminal enclosure to preserve the assembly's overall IP66 ingress protection standard.
Mechanical & Mounting Infrastructure Compatibility
The UHC-30XT features a heavy-duty metal mounting bracket engineered with 270-degree rotation. This allows field technicians to secure and orient the speaker on structural I-beams, flat concrete walls, steel truss columns, and dedicated pole-mounting clamps. All external stand mounting bolts are manufactured from stainless steel, ensuring hardware compatibility and corrosion resistance in coastal, chemical, or outdoor industrial operating environments.
Compliance & Standards
The horn assembly is fully compliant with the European Union Low Voltage Directive standard EN 60065, ensuring electrical safety and design compliance when integrated into commercial and industrial audio distribution systems.
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