Ahuja APZ-504LD Speaker Loop Detector
- Genuine Ahuja Speaker Loop Detector
- Monitors Up to 10 Speaker Lines
- Compatible with 70V & 100V Speaker Systems
- Detects Open Circuit Faults
- Detects Short Circuit Faults
- Detects Speaker Line Overload
- Detects Speaker Line Impedance Changes
- Continuous Speaker Line Monitoring
- Improves PA System Reliability
- Fast Fault Detection & Easy Maintenance
- Standard 19-Inch Rack-Mount Design
Ahuja APZ-504LD Speaker Loop Detector | 10 Channel Speaker Line Monitoring System
The Ahuja APZ-504LD Speaker Loop Detector is a professional speaker line monitoring and fault detection unit designed to ensure the reliable operation of Public Address (PA) Systems. Built with Ahuja’s trusted technology, this device continuously monitors speaker lines and instantly detects faults such as open circuits, short circuits, speaker line impedance changes, and overload conditions, helping maintain uninterrupted audio performance.
Designed to monitor up to 10 speaker lines, the APZ-504LD is fully compatible with 70V and 100V line speaker systems, making it ideal for commercial, industrial, and institutional PA installations. Its continuous supervision feature helps maintenance teams quickly identify faults, reducing downtime and ensuring emergency announcements are always delivered without interruption.
The APZ-504LD features a heavy-duty 19-inch rack-mount design, making it easy to integrate into existing PA equipment racks. It operates on AC 230V or DC 24V, providing installation flexibility for professional audio systems.
Ideal for schools, colleges, hospitals, airports, railway stations, shopping malls, hotels, factories, warehouses, offices, industrial plants, government buildings, and large commercial facilities, the Ahuja APZ-504LD Speaker Loop Detector enhances system reliability and ensures continuous monitoring of speaker networks.
Frequently Asked Questions (FAQs)
1. What is the Ahuja APZ-504LD used for?
The Ahuja APZ-504LD is a speaker loop detector that continuously monitors speaker lines in Public Address (PA) systems and detects faults to ensure reliable operation.
2. How many speaker lines can the APZ-504LD monitor?
The APZ-504LD can monitor up to 10 speaker lines simultaneously, making it suitable for medium and large PA installations.
3. What types of faults can the APZ-504LD detect?
It detects open circuits, short circuits, speaker line impedance changes, and overload conditions, helping maintain uninterrupted PA system performance.
4. Is the APZ-504LD compatible with 70V and 100V speaker systems?
Yes. It is fully compatible with both 70V and 100V line speaker systems, commonly used in commercial and industrial PA installations.
5. Where can the Ahuja APZ-504LD be used?
The APZ-504LD is ideal for schools, hospitals, offices, hotels, shopping malls, airports, railway stations, factories, warehouses, government buildings, and other commercial or industrial facilities.
Specification
| Model | APZ-504LD |
| Brand | Ahuja |
| Product Type | Speaker Loop Detector |
| Speaker Line Monitoring | Up to 10 Speaker Lines |
| Compatible Speaker Systems | 70V & 100V Line Speaker Systems |
| Fault Detection | Open Circuit, Short Circuit, Overload & Impedance Monitoring |
| Monitoring Function | Continuous Speaker Line Supervision |
| Power Supply | AC 230V, 50Hz & DC 24V |
| Power Consumption | 20W |
| Mounting Type | Standard 19-Inch Rack Mount |
| Dimensions | 484 × 88 × 303 mm |
| Weight | Approx. 5.5 kg |
| Country of Origin | Made in India |

















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