The loudest speaker

Acoustic speakers are a unique device that can amplify the sound of your favorite music, spreading it over tens and sometimes hundreds of meters and even kilometers. Conventional speaker systems for home use can produce sound up to 90 dB. But this is far from the limit. The loudest speaker in the world has a maximum volume of 145 dB!

REFERENCE: A loud conversation is 60 dB, an airplane engine operates at a volume of 130 dB, and 140 dB is already a painful, dangerous sound threshold for humans.

The most powerful acoustics in the world - commissioned by Paul McCartney

The most powerful loudspeakers have been designed to play music. They were created by Bose. The main purpose of this device was to provide sound for concerts with a large audience in an open space. The speaker has a power of 4900 watts. Manufacturers assured that this was not the limit; it was possible to create a device with a power of 11 thousand watts, but this was impractical and unsafe. And Sir Paul McCartney himself ordered such a “miracle device”. For viewers, such an invention turned out to be overly powerful. Those standing close to the sound source, within a radius of 100 m from the stage, were especially unlucky.

The story of why he ordered it

Paul McCartney planned to organize one of the largest festivals in memory of the legendary Beatles. The event promised to be large-scale, so the musician thought about acoustics in advance.So that everyone present can enjoy the musical compositions to the fullest, regardless of the distance from the stage. Turning to the then little-known company Boss, he ordered the development of a mega loud device. The Beatles had previously dreamed that just 40 years after their retirement, acoustics with such capabilities would be developed. It would be very useful at their concerts with thousands of people in stadiums.

After the festival, the media loudly reported that more than 50 people were injured due to powerful sound waves. All of them were located directly near the stage. For several days after the festival, the victims had headaches, general malaise, and tinnitus. Doctors explained that these symptoms were caused by excessive exposure to sound waves.

REFERENCE: An interesting fact is that all the victims, a few weeks later, again attended another event created using the same Ultra-Slim ARRAY speakers.

At the festival, which Sir Paul McCartney took part in, a huge stage was installed on which an audio system was placed. The sound spread over a radius of more than 5 km. The system included three long speakers, several clusters of small speakers around the perimeter of the podium, and two amplifiers under the stage. After the event, Bose gained unprecedented popularity and began working on a new version of the speaker system. The next, modernized acoustics developed by this company had the same power indicators. The differences from its predecessor are an expanded frequency range and a reduced harmonic distortion factor.

Description, cost of acoustics

An acoustic system consists of a set of devices that provide audio playback. The kit includes audio signal power amplifiers, a frequency filter (crossover) and three speakers with dynamic heads.

The speaker power is 4900 W, the maximum playback volume is from 139 to 145 dB. The cost of this device corresponds to its capabilities and amounts to tens of thousands of dollars.