Square dance, how not to disturb the people

The government stepped in, designated locations, the installation of a number of low-power speakers preferably buried, like the park's sound system, so that the overall sound decibel is low, the dissemination of a small range of nuisance is mainly a large crowd, the range is large, a single speaker must be powerful in order to ensure that the back of the people can hear the dance music, which results in a wide range of nuisance to the public, to find the root of the problem is not so that everyone dancing can hear the dance music it? Your government to make each small speakers a little more beautiful or a kind of environmental beautification investment it, two birds with one stone, why not.