Mounting Bracket Integration and Angle Adjustment
The Ahuja SUH-25 public address horn speaker is engineered with an integrated heavy-duty metal mounting bracket designed for secure installation across industrial structures, facility perimeters, vehicle roofs, and marine vessels. The robust metal bracket provides a 270-degree rotational arc, enabling precise directional aiming of the rectangular acoustic horn flare toward designated target listening areas. With external dimensions measuring 315 mm x 165 mm across the mouth and an overall length of 290 mm, adequate clearance must be maintained around the pivot stand to utilize the full 270° orientation range.
Weighing 1.90 kg, the speaker assembly exerts a low structural load, allowing direct mechanical fastening onto masonry walls, structural steelwork, utility poles, flat structural surfaces, or mobile platforms. When fastening the bracket, utilize structural hardware appropriate for the specific mounting substrate to ensure the unit remains securely fixed during heavy industrial vibrations, mobile vehicle movement, or strong outdoor wind exposure.
Electrical Wiring and Amplifier Matching
The SUH-25 operates as a low-impedance PA horn speaker with a nominal electrical impedance of 8 ohms (8Ω). When integrating the horn into commercial or industrial sound reinforcement systems, ensure that the connected public address amplifier supports low-impedance 8-ohm speaker line outputs. The driver is rated for an input power of 25W RMS and 38W Max, delivering a sound pressure level (SPL) of 108 dB (1W/1m) and 122 dB (25W/1m) across an effective frequency response range of 250 Hz to 10,000 Hz.
For field termination, the speaker comes factory-fitted with a 0.6-metre (2-foot) 2-core sheathed speaker cable. The cable entry point on the driver housing is sealed with a water-tight, tug-proof cable gland, preventing mechanical strain on internal terminals while blocking moisture entry. To extend the line to the central amplifier, splice the pre-fitted 2-core cable inside an appropriate weatherproof junction box using suitable terminal blocks to maintain electrical continuity and weather integrity.
Environmental Considerations and Driver Reliability
Engineered for outdoor industrial environments, the flare of the SUH-25 is moulded from tough UV-protected ABS plastic, preventing degradation, cracking, and surface deterioration caused by continuous ultraviolet solar radiation. The complete assembly provides an IP66 degree of protection, safeguarding internal components against foreign particle ingress such as dust and high-pressure water jets from any direction.
Internally, the acoustic driver features a voice coil precision-wound on an aluminium bobbin. This design facilitates efficient heat dissipation away from the coil during extended or continuous voice broadcasting, thereby maximizing operating efficiency and long-term driver reliability. The speaker complies with the European Union Low Voltage Directive standard EN 60065, ensuring standardized safety for professional audio installations.
Installation Parameter Summary
| Parameter |
Specification / Requirement |
| Nominal Impedance |
8 Ohms (8Ω) low-impedance amplifier output |
| Rated Input Power |
25W RMS / 38W Max |
| Mounting Hardware |
Heavy-duty metal bracket / stand with 270° rotation |
| Pre-Fitted Cable |
0.6 m (2 ft) 2-core sheathed cable with water-tight, tug-proof gland |
| Horn Dimensions & Weight |
315 mm x 165 mm (mouth) x 290 mm (length); 1.90 kg |
| Material & Ingress Protection |
UV-protected ABS plastic flare; IP66 dust and water jet protection |
| Safety Standard Compliance |
European Union standard EN 60065 |
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