What is a subwoofer in the end

Introduction to the so-called tweeter, and audio equipment in the subwoofer is not related, it is actually a kind of called "remote directional sound amplification equipment" commonly known as "remote directional sound amplification equipment", this equipment can be focused on a direction of the sound propagation over long distances, and to maintain sufficient sound pressure intensity, was compared to the image of the tweeter.

The trebuchet uses two columns of db6100 remote sound engine system, mainly using high sensitivity and high directivity of the narrow band speaker to achieve the effect of sound reinforcement.

Generally used for strong sound to repel storms, disaster events (earthquakes, floods, etc.) command scheduling.

Principle tweeter principle ordinary speaker horn release sound wave is a spherical wave, even if the air is not taken into account caused by the absorption of attenuation, it is also with the distance and attenuation.

If you overcome the diffuse attenuation characteristics of the spherical wave, and find a way to focus the sound wave, you can spread the sound farther, and at the same time realize the long-distance directional propagation.

Instead of playing audio in spherical form like a regular speaker, which ultimately results in the intensity of the sound decreasing rapidly with distance, a long-range directional matrix sound engine system, like a spotlight, can focus the sound in one direction to propagate over long distances.

Assuming that the sound source of a PA system is a spherical wave, a spherical wave incident on a curved surface will either focus or diverge in its reflected wave.

The trebuchet incident trebuchet back square dance in October 2013, in order to deal with the problem of square dance nuisance, Wenzhou City, the new Guoguang commercial and residential plaza of more than 600 tenants pooled funds 260,000 yuan, to buy a set of trebuchets "to fight back" square dance music.

And square dance music at the same time to play the warning: "Please comply with the Chinese people *** and the State Environmental Noise Pollution Law, immediately stop illegal behavior!" The incident was reported by a number of media and triggered widespread concern, treble cannons have also become a network search terms.