Long-distance Directional Double Sound Wave Loud sound Drive Away System

Long-distance Directional Double Sound Wave Loud sound Drive Away System

Product Introduction

The DY-QS4B2/33 Long distance directional sound wave strong sound drive away system is based on the strong directivity propagation mode of sound waves and emits powerful, loud and ultra-high decibel harsh noise within a certain coverage angle. 

It has high sound pressure level, strong directivity and clear sound. The effect distance is long, causing discomfort symptoms to the listeners and acting as a deterrent, thereby achieving the purpose of driving away. 

When working, it emits a beam angle (H×V): 10°×15° @2.5kHz/-3dB directional sound waves, which can broadcast clear voice information and high-intensity warning sounds (either real-time voice or pre-recorded voice) , the sound transmission distance is up to 4000 meters (STI-PA): ≥ 0.6, and the sound is highly directional: the sound in the forward area is clear and attenuated, and the sound in the rear and surrounding areas attenuates quickly and has little interference. This product also has a high-power amplifier function and can be used for emergency broadcasts, shouting, playing prefabricated sound sources, etc. It can also be used in large-scale publicity activities.

The high-precision and high-stable turntable adopts hybrid motor drive, has multiple protection functions, is designed to withstand strong winds, operates stably and reliably, has a novel shape, is easy to deploy, and is suitable for use in various harsh environments such as fixed or mobile outdoor situations.

Product Features

Anti-salt spray, anti-corrosion, anti-mold, waterproof and earthquake-resistant.

◆ Rated power: 800W

◆ Constant voltage input: 100V

◆ Frequency response: 200-16000Hz

◆ Maximum sound pressure level: 158dB±3dB

◆ Beam width (H×V):10° ×15° @2.5kHz/-3dB

◆ All-weather design, the shell is made of aerospace industry technology, resistant to acid and alkali, salt spray, and can withstand high-intensity impact and vibration. It has a windproof level of 12 and a protection level of IP66;

◆ The test conditions are: normal temperature (25°C), relative humidity of 20%, no wind, and free sound field. The maximum peak output sound pressure level at 1 meter can reach more than 158dB, the effective dispersion distance is 250 meters, and the voice transmission distance is 70db at 3000 meters.

◆ Sound is transmitted in a concentrated beam with sharp directivity. Within the effective dispersion range of the sound beam axis, it can cause auditory pain or even cause hearing loss in a short period of time.

◆ Aerospace composite materials, high strength, light weight and good protection;

◆ It has multiple functions such as shouting and playing sound sources, with clear and loud sound and long range;

◆ The wide dynamic range formed by the combination of the power amplifier operating power supply and the speaker protection circuit provides guarantee conditions for efficient electroacoustic conversion;

◆ The sound is highly directional: the sound in the forward area is clear and has low attenuation, and the sound in the backward and surrounding areas is rapidly attenuated with little interference;

◆ The design of high-efficiency electro-acoustic conversion system (standard sound pressure level + high-efficiency beam energy speaker) achieves the design goal of high sound pressure level/low driving power consumption.

◆ After linking with radar, it can realize automatic tracking to drive away strong sounds and automatic tracking and shouting deterrent functions.

Scope of Application

It can be used for law enforcement on official ships, commanding heights in cities, border and coastal defense, waterways, airports to drive birds away, vehicle-mounted patrol environments, prisons, military exercises, anti-terrorism, etc. It can be used alone, or can be linked with radar or photoelectric turntables to carry out all-round and precise driving away from targets.

Schematic diagram of sound transmission by directional acoustic amplifier