The DL133-80 is a highly distinctive dual-frequency electronic horn designed for passenger vehicles. Utilizing 400Hz low-frequency + 500Hz high-frequency combined sound generation technology, it breaks through the acoustic limitations of traditional single-frequency horns. The superimposed effect of dual-frequency sound waves achieves clearer and more penetrating warning sounds. It strictly adheres to vehicle sound standards, ensuring a balance between safety compliance and auditory comfort.
| Parameter | Technical Specification |
|---|---|
| Rated Voltage | 12V DC |
| Operating Current | 6A ±10% |
| Base Frequency Combination | 400Hz±20Hz / 500Hz±20Hz |
| Sound Pressure Level (SPL) | 105-118dB @ 2m |
| Mounting Aperture | φ82mm |
| Protection Rating | IP67 |
| Operating Temperature Range | -40℃ ~ +95℃ |
Dual-Frequency Acoustic Patent Technology
Sound energy is concentrated in a forward 60° conical area through 400Hz and 500Hz harmonic coupling.
Compared to single-frequency horns, the effective propagation distance is increased by 40%.
Intelligent Protection Mechanisms
Voltage Adaptive Circuit: Compatible with an 11-15V fluctuation range to avoid overvoltage damage.
Overheat Frequency Reduction Protection: Automatically adjusts the duty cycle after continuous sounding for >8 seconds to protect the diaphragm.
Ergonomic Optimization
Dual-Frequency SPL Gradient Control: SPL at close range (<5m) is ≤112dB to avoid auditory discomfort.
Compatible Vehicle Types:
12V passenger vehicles such as sedans, SUVs, and MPVs.
New energy vehicles (electromagnetic compatibility confirmation required).
Installation Guide:
Location Selection: Prioritize the original horn location; the secondary option is the ventilated area behind the front crash beam.
Direction Adjustment: Orient the horn's sound outlet toward the vehicle's forward direction with a downward tilt angle of ≈15°.
